Tail gas dust removal device for white corundum production

Abstract

The invention relates to the technical field of tail gas treatment, and discloses a tail gas dust removal device for white corundum production, which comprises a shell, a gas inlet pipe is arranged at the bottom of the shell, a gas outlet pipe is arranged at the top of the shell, a control valve is arranged on the gas inlet pipe, a stirring mechanism is arranged in the shell, and the stirring mechanism comprises a driving motor and a rotating rod. A plurality of annularly-distributed extending pipe bodies are movably installed at the bottom of the rotating rod, water outlet holes are formed in the side faces of the extending pipe bodies, and a second partition plate is installed in the shell. Through the reasonably-designed through hole, the partition cover and the spraying system, tail gas can be fully contacted and treated when entering a cleaning solution and water mist area, and the tail gas can be fully treated; dust, impurities and water in the tail gas can be rapidly removed, the tail gas purification effect is effectively improved, and the tail gas emission requirement in the white corundum production process is met.

Description

Technical Field

[0001] The invention relates to the technical field of tail gas treatment, in particular to a tail gas dust removal device for white corundum production. Background Art

[0002] In the production process of white corundum, the emission and treatment of tail gas has always been an urgent problem to be solved. A large amount of dust, smoke and harmful gases will be generated in the production process of white corundum. If these tail gases are directly discharged without effective treatment, they will cause serious pollution to the environment, affect the surrounding air quality, and may also cause harm to the health of operators. Therefore, effective purification and dust removal technology for tail gas is particularly important.

[0003] The existing tail gas dust removal device has the problem of poor dust removal effect when in use. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an exhaust gas dust removal device for white corundum production.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A tail gas dust removal device for white corundum production comprises a shell, an air inlet pipe is arranged at the bottom of the shell, an air outlet pipe is arranged at the top of the shell, a control valve is arranged on the air inlet pipe, a stirring mechanism is arranged in the shell, the stirring mechanism comprises a driving motor and a rotating rod, a plurality of annularly distributed extension pipe bodies are movably mounted at the bottom of the rotating rod, a water outlet hole is arranged on the side of the extension pipe body, a partition plate 2 is installed inside the shell, a plurality of concentrically arranged separation covers are arranged on the top of the partition plate 2, the extension pipe body is located between two adjacent separation covers, and a through hole 3 is arranged at the position of the partition plate 2 in the separation cover; a fixed gear ring is arranged at the circumference of the separation cover, and a driven tooth meshing with the fixed gear ring is arranged at the circumference of the extension pipe body; a water removal mechanism is arranged at the circumference of the spray shell, a water pump is arranged outside the shell, and the water outlet end of the water pump is connected with the inside of the spray shell through a water pipe.

[0007] Preferably, a second fixed mesh plate is installed inside the shell, a purification chamber is provided between the second fixed mesh plate and the second partition plate, and the purification chamber is filled with adsorption particle material.

[0008] Preferably, a stirring component is provided on the side of the rotating rod extending into the purification chamber.

[0009] Preferably, a partition plate 1 and a fixed mesh plate 1 are installed inside the shell, a through hole 2 is opened on the partition plate 1, and a lifting mechanism is provided on the partition plate 1 for stirring the bubbles flowing at the opening of the through hole 2.

[0010] Preferably, the lifting mechanism includes a lifting cover installed on the bottom of the partition through a spring, a lifting rod is provided on the top of the lifting cover, a lifting seat is provided at one end of the lifting rod extending to the top of the fixed mesh plate, a plurality of extension rods are provided at the bottom of the lifting seat, and a stirring side wing is provided at one end of the extension rod extending into the through hole two.

[0011] Preferably, a plurality of threaded holes are provided on the fixed mesh plate, and the extension rods are arranged through the threaded holes, and threads meshing with the inner walls of the threaded holes are provided at the circumference of the extension rods.

[0012] Preferably, the lifting cover is an arc-shaped structure, and a side of the lifting cover close to the air inlet pipe opening is an inner arc surface.

[0013] Preferably, the dewatering mechanism comprises a dewatering shell of an annular structure, the dewatering shell is located between the circumferential outer wall of the spray shell and the circumferential inner wall of the shell, a dewatering filter is arranged inside the dewatering shell, and a through hole is opened on the circumferential inner wall of the dewatering shell.

[0014] Preferably, a drain pipe is provided on one side of the shell, and one end of the drain pipe extends to the circumference of the top of the second partition.

[0015] Preferably, the opening inner diameter of the through hole 2 located at the circumference of the partition plate 1 is larger than the opening inner diameter of the through hole 2 located at the center of the partition plate 1.

[0016] Preferably, the distance between the top of the partition cover and the bottom of the spray housing is 3 cm to 5 cm.

[0017] The beneficial effects of the present invention are:

[0018] 1. Efficient tail gas purification capability: Through the rationally designed through-holes, separation hoods and spray systems, the tail gas can be fully contacted and processed when entering the cleaning liquid and water mist area. Dust, impurities and moisture in the tail gas can be quickly removed, effectively improving the tail gas purification effect and meeting the tail gas emission requirements in the white corundum production process.

[0019] 2. Optimization of exhaust gas flow and water mist coverage: The reasonable spacing (3 cm to 5 cm) between the partition cover and the spray shell is designed to ensure sufficient contact time when the exhaust gas flows through this area, while avoiding exhaust gas retention and slow flow rate, ensuring that the water mist can be evenly sprayed and effectively absorb particulate matter in the exhaust gas. This design improves the contact efficiency between the exhaust gas and the water mist and enhances the dust removal effect.

[0020] 3. Dynamic stirring improves dust removal effect: The stirring mechanism and the lifting mechanism are used together. Through the action of the rotating rod and the stirring side wings, the exhaust gas flow and the cleaning liquid can be dynamically stirred, so that the impurities in the exhaust gas can fully contact the cleaning liquid. The synergistic effect of the stirring components and the lifting mechanism effectively prevents the clogging problem of the adsorption particle material, enhances the self-cleaning function of the adsorption particles, and thus improves the continuous effect of exhaust gas purification.

[0021] 4. High efficiency of water removal and discharge: The water removal mechanism effectively removes water from the exhaust gas through the water removal filter element, ensuring that the exhaust gas does not contain excessive water before discharge, avoiding the impact of water in the exhaust gas on subsequent equipment. The drainage pipe design effectively removes filtered water, prevents water from accumulating inside the equipment, and ensures long-term stable operation of the equipment.

[0022] 5. Equipment stability and reliability: Through the rational design of various components, such as filter screens, stirring mechanisms, lifting devices and water removal systems, the efficiency and stability of the equipment during long-term use are ensured. The optimization of water mist spraying and exhaust gas flow makes the exhaust gas dust removal process more efficient and uniform, avoiding equipment failures caused by water accumulation or uneven exhaust gas flow, and improving the reliability of the equipment.

[0023] 6. Environmental protection and energy saving: The device can not only effectively treat pollutants in exhaust gas, but also improve the purification efficiency and reduce water waste and energy consumption by optimizing the contact between water mist and exhaust gas. This has a positive effect on improving the air quality of the production environment and reducing environmental pollution, and meets the needs of modern environmental protection and energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of an exhaust gas dust removal device for white corundum production proposed in an embodiment of the present invention;

[0025] Figure 2 A structural cross-sectional view of an exhaust gas dust removal device for white corundum production proposed in an embodiment of the present invention;

[0026] Figure 3 for Figure 2 A magnified view of the structure at center A;

[0027] Figure 4 A schematic diagram of the internal structure of an exhaust gas dust removal device for white corundum production proposed in an embodiment of the present invention;

[0028] Figure 5 A schematic diagram of the structure of a lifting mechanism in a tail gas dust removal device for white corundum production proposed in an embodiment of the present invention;

[0029] Figure 6 A schematic diagram of the structure of a partition plate 1 in an exhaust gas dust removal device for white corundum production proposed in an embodiment of the present invention;

[0030] Figure 7 A structural cross-sectional view of a partition plate 2, a partition cover, a spray shell and a water removal shell in an exhaust gas dust removal device for white corundum production proposed in an embodiment of the present invention;

[0031] Figure 8 A schematic diagram of the structure of a partition plate 2, a partition cover and a fixed gear ring in an exhaust gas dust removal device for white corundum production proposed in an embodiment of the present invention;

[0032] Fig. 9 This is a schematic structural diagram of an extension tube body and a spray shell in an exhaust gas dust removal device for white corundum production proposed in an embodiment of the present invention.

[0033] In the figure: 1-shell, 2-drain pipe, 3-inlet pipe, 4-outlet pipe, 5-stirring mechanism, 51-drive motor, 52-rotating rod, 53-stirring component, 6-water pump, 7-spray shell, 8-water removal mechanism, 81-water removal shell, 82-water removal filter element, 83-through hole one, 9-lifting mechanism, 91-lifting cover, 92-lifting seat, 93-extension rod, 94-stirring side wing, 95-lifting rod, 10-partition one, 11-fixed mesh plate one, 12-fixed mesh plate two, 13-partition two, 14-purification chamber, 15-partition cover, 16-water outlet, 17-extension tube body, 18-through hole two, 19-fixed gear ring, 20-driven gear, 21-control valve. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] In one embodiment, referring to Figures 1 to 9A tail gas dust removal device for white corundum production includes a shell 1, an air inlet pipe 3 is arranged at the bottom of the shell 1, an air outlet pipe 4 is arranged at the top of the shell 1, a control valve 21 is arranged on the air inlet pipe 3, a stirring mechanism 5 is arranged in the shell 1, the stirring mechanism 5 includes a driving motor 51 and a rotating rod 52, a plurality of annularly distributed extension tubes 17 are movably installed at the bottom of the rotating rod 52, a water outlet hole 16 is opened on the side of the extension tube 17, a partition 13 is installed inside the shell 1, and the partition 11 is provided with a water outlet hole 16. 3 is provided with a plurality of concentrically arranged partition covers 15 at the top, the extension tube body 17 is located between two adjacent partition covers 15, and the partition plate 13 is provided with a through hole 3 at the position inside the partition cover 15; a fixed gear ring 19 is provided at the circumference of the partition cover 15, and a driven tooth 20 meshing with the fixed gear ring 19 is provided at the circumference of the extension tube body 17; a water removal mechanism 8 is provided at the circumference of the spray shell 7, and a water pump 6 is provided outside the shell 1, and the water outlet end of the water pump 6 is connected to the inside of the spray shell 7 through a water pipe.

[0036] During use, cleaning liquid is injected into the bottom of the shell 1, and the exhaust gas to be dedusted is introduced into the shell through the air inlet pipe 3. The control valve 21 accurately controls the flow rate and injection interval of the exhaust gas. After entering the shell 1, the exhaust gas flows to the inside of the separation cover 15 through the through hole 3. The concentric structure of the separation cover 15 can effectively disperse the exhaust gas and slow down its flow rate, thereby promoting the sedimentation of dust particles. In this process, the water pump 6 transports water to the spray shell 7 and the extension tube body 17 through the water pipe, and sprays water mist through the water outlet 16. The water mist covers the exhaust gas flow area, effectively adsorbs the dust in the exhaust gas, and forms liquid pollutants. At the same time, the driving motor 51 drives the rotating rod 52 and the extension tube body 17 to rotate horizontally. Since the fixed gear ring 19 is meshed with the driven gear 20, the extension tube body 17 rotates while rotating horizontally, thereby driving the water mist to spray at multiple angles, and further promoting the full contact between the particulate matter in the exhaust gas and the water mist through the stirring action of the extension tube body 17, thereby improving the dust removal effect; after the exhaust gas in the separation cover 15 is sprayed and stirred for dust removal, it flows to the top of the spray shell 7 through the gap between the separation cover 15 and the spray shell 7, and is finally discharged through the exhaust pipe 4. In this process, the water removal mechanism 8 removes water from the exhaust gas to ensure that the exhaust gas meets environmental protection standards. The dust removal process of the device removes harmful substances in the exhaust gas layer by layer through multi-stage filtration, spray cleaning and stirring, and has high efficiency in dust removal and good environmental protection performance.

[0037] The stirring effect brought about by the rotation and horizontal rotation of the extension tube body 17 causes the particulate matter in the exhaust gas to be continuously impacted and stirred, so that the contact between the water mist and the exhaust gas is more complete, and the particulate matter can be captured by the water mist to the greatest extent.

[0038] The sprayed water mist not only plays a role of physical collision, but also can further decompose the harmful components in the exhaust gas through certain chemical reactions if necessary, depending on the types of harmful substances in the exhaust gas.

[0039] As a preferred embodiment of the present invention, the control valve 21 is not only used to adjust the injection flow rate of the exhaust gas, but also can adjust the exhaust gas flow rate entering the system in real time according to the exhaust gas concentration and treatment requirements to ensure the optimization of the system operation efficiency and dust removal effect.

[0040] The control system may include sensors for real-time monitoring of exhaust gas concentration to ensure that the flow rate and injection amount of cleaning fluid in the exhaust gas treatment process remain at an optimal state.

[0041] As a preferred embodiment of the present invention, a fixed mesh plate 12 is installed inside the shell 1, and a purification chamber 14 is arranged between the fixed mesh plate 12 and the partition plate 13. The purification chamber 14 is filled with adsorption granular materials. These granular materials have a large specific surface area and can effectively adsorb harmful substances and impurities in the exhaust gas.

[0042] As a preferred embodiment of the present invention, a stirring component 53 is provided on the side of the rotating rod 52 extending into the purification chamber 14. After the exhaust gas is separated from the dust by the cleaning liquid, it enters the purification chamber 14 and fully contacts with the adsorption particle material therein. The pollutants, gaseous harmful substances and tiny particles in the exhaust gas will be adsorbed on the surface of the particle material, thereby effectively removing impurities in the exhaust gas.

[0043] In order to improve the use efficiency of the adsorption particle material and extend its service life, the driving motor 51 can drive the rotating rod 52 and the stirring component 53 to rotate continuously. The movement of the stirring component 53 in the purification chamber 14 not only makes the exhaust gas more fully contact with the adsorption particle material, but also effectively prevents excessive sediment from forming on the surface of the adsorption particles. Through the stirring action, friction occurs between the adsorption particles, and the force generated by the friction can remove dust and impurities attached to the surface of the adsorption particles. This can prevent the blockage of the particle surface and ensure the regeneration ability of the adsorption particles. On the other hand, it can effectively improve the adsorption performance of the particle material.

[0044] In addition, the stirring action can also optimize the distribution of adsorption particles in the purification chamber, avoiding the deposition of particles in certain areas, thereby ensuring the uniformity of the adsorption effect in the entire purification chamber. This design enables the adsorption particle material to work efficiently for a long time and avoids the decline of adsorption effect caused by dust accumulation, thereby extending the service life of the equipment and improving the efficiency of exhaust gas purification.

[0045] As a preferred embodiment of the present invention, a partition 10 and a fixed mesh plate 11 are installed inside the shell 1. A through hole 2 18 is opened on the partition 10. A lifting mechanism 9 is set on the partition 10 to stir the bubbles flowing at the opening of the through hole 2 18, and the exhaust gas is ejected at intervals at the opening of the top of the intake pipe 3. The lifting mechanism 9 is lifted and lowered at intervals to stir the bubbles flowing from bottom to top at the opening of the through hole 2 18, so that the exhaust gas in the bubbles is fully in contact with the cleaning liquid, and the dust in the exhaust gas is preliminarily removed; when the exhaust gas passes through the opening at the top of the intake pipe 3, the exhaust gas is ejected at intervals to form a bubble-like flow. The lifting mechanism 9 is lifted and lowered according to the set intervals and time, driving the bubbles to flow from bottom to top and stir, improving the movement effect of the bubbles, and ensuring that the pollutants in the exhaust gas can be captured and separated more efficiently by the cleaning liquid.

[0046] The lifting mechanism 9 not only improves the contact efficiency between the exhaust gas and the cleaning liquid by stirring the bubbles, but also promotes the initial removal of dust in the exhaust gas in the bubbles. The flow state of the bubbles combined with the stirring effect makes the contact between the fine particles in the exhaust gas and the cleaning liquid more complete, thereby improving the initial dust removal effect. At the same time, the intermittent movement of the lifting mechanism avoids the deposition or blockage of the bubbles at the through hole 18, ensuring that the exhaust gas is evenly distributed throughout the purification process.

[0047] The fixed mesh plate 11 further filters and disperses the bubbles. Its structural design can effectively reduce the volume of the bubbles and increase the contact area between the bubbles and the pollutants in the exhaust gas. Through this multi-level filtration, the fixed mesh plate 11 helps to further disperse and intercept the larger particles remaining in the exhaust gas, preventing the inadequately treated exhaust gas from entering the subsequent purification area again.

[0048] As a preferred embodiment of the present invention, the lifting mechanism 9 includes a lifting cover 91 installed at the bottom of the partition 10 through a spring. The lifting cover 91 can move up and down under the elastic action of the spring, ensuring the flexibility and adaptability of the mechanism. A lifting rod 95 is arranged on the top of the lifting cover 91. A lifting seat 92 is arranged at one end of the lifting rod 95 extending to the top of the fixed mesh plate 11. A plurality of extension rods 93 are arranged at the bottom of the lifting seat 92. A stirring wing 94 is arranged at one end of the extension rod 93 extending to the through hole 18. A plurality of threaded holes are opened on the fixed mesh plate 11. The extension rod 93 is arranged through the threaded hole. The circumference of the extension rod 93 is provided with a thread meshed with the inner wall of the threaded hole. The wing 94 stirs the bubbles and cleaning liquid flowing at the opening of the through hole 18 through lifting and moving. Through the action of the stirring wing 94, the contact efficiency between the dust in the exhaust gas and the cleaning liquid is improved, and the bubbles and the exhaust gas are mixed more evenly, thereby achieving a more efficient dust removal effect.

[0049] The lifting cover 91 drives the lifting rod 95 and the lifting seat 92 to move up and down through the elastic action of the spring and the lifting action of the exhaust gas ejected at intervals from the opening of the intake pipe 3. This reciprocating motion ensures sufficient contact between the bubbles and the cleaning liquid, and effectively avoids the accumulation or precipitation of bubbles in a fixed area, ensuring the continuity and uniformity of the purification process.

[0050] It is worth noting that the extension rod 93 will also rotate during the lifting process. This rotation is due to the meshing of the threaded circumference of the extension rod 93 with the inner wall of the threaded hole. Through this rotation, the extension rod 93 can stir the stirring wing 94 in a larger range while lifting, thereby significantly improving the stirring effect, enhancing the interaction between the bubbles and the cleaning liquid, and making it possible to remove impurities and dust in the exhaust gas more efficiently. The addition of rotation further optimizes the stirring process, making it easier for pollutants in the exhaust gas to fully contact with the cleaning liquid and improving the purification efficiency.

[0051] As a preferred embodiment of the present invention, the lifting cover 91 is an arc-shaped structure, and the side of the lifting cover 91 close to the opening of the air intake pipe 3 is an inner arc surface.

[0052] As a preferred embodiment of the present invention, the dewatering mechanism 8 includes a dewatering shell 81 of an annular structure, which is located between the circumferential outer wall of the spray shell 7 and the circumferential inner wall of the shell 1, forming a sealed space for processing the exhaust gas overflowing from between the partition cover 15 and the spray shell 7. The interior of the dewatering shell 81 is equipped with a dewatering filter element 82, which plays a key role in removing moisture from the exhaust gas. Through its physical and chemical effects, the dewatering filter element 82 can effectively filter out water vapor and liquid water in the exhaust gas, ensuring that the exhaust gas does not contain excessive moisture before being discharged, thereby protecting subsequent equipment from the influence of moisture.

[0053] The inner circumferential wall of the dewatering housing 81 is provided with a through hole 83, so that the tail gas treated by the dewatering filter 82 can smoothly flow to the top of the spray housing 7. When the tail gas contacts the dewatering filter 82, the water is filtered out, and the dry gas flows to the upper spray housing 7 through the through hole 83, thereby completing the dewatering process.

[0054] In addition, a drain pipe 2 is provided on one side of the shell 1, and one end of the drain pipe 2 extends to the circumference of the top of the partition 13. The drain pipe 2 plays a role in guiding and discharging water, ensuring that the filtered water can be effectively discharged. Specifically, the water droplets removed by the water removal filter 82 will gather and accumulate between the outer wall of the partition cover 15 and the inner wall of the shell 1, and these water droplets will naturally fall under the action of gravity. When the water droplets accumulate to a certain extent, the water will be discharged in time through the drain pipe 2 to avoid water accumulation in the equipment and ensure the long-term stable operation of the equipment.

[0055] The design of this water removal structure fully considers the efficiency of exhaust gas dehydration and the convenience of drainage, ensuring that in the exhaust gas purification process, the water is removed without affecting the normal operation of the equipment. Through the function of the water removal filter 82, the water in the exhaust gas is effectively removed to avoid the damage of the water to the subsequent equipment, especially the electrical components. At the same time, the drain pipe 2 provides a channel for water discharge, avoiding the accumulation of water inside the equipment, and further improving the operating stability and safety of the equipment.

[0056] As a preferred embodiment of the present invention, the opening inner diameter of the through hole 2 18 located at the circumference of the partition 10 is larger than the opening inner diameter of the through hole 2 18 located at the center of the partition 10. This design is intended to optimize the flow and purification process of the exhaust gas. Specifically, through the change in the size of the inner diameter, the opening inner diameter of the through hole 2 18 is larger at the circumference of the partition 10, which can provide a larger airflow channel, so that the exhaust gas can flow more smoothly when flowing through this area, reduce the resistance of the airflow, and ensure the uniform distribution of the exhaust gas.

[0057] The opening inner diameter of the through hole 2 18 located at the center of the partition 10 is relatively small, the purpose is to enhance the contact efficiency between the exhaust gas and the cleaning liquid when passing through this area by controlling the air flow speed and flow direction. When the exhaust gas flows through the area with a smaller inner diameter, the air flow speed will increase, thereby improving the mutual contact effect between the pollutants in the exhaust gas and the cleaning liquid, which helps to improve the dust removal efficiency.

[0058] This design with different inner diameters has several advantages. First, in the area with a larger inner diameter, the airflow can transition smoothly, reducing the turbulence and resistance of the airflow, and avoiding the vortex phenomenon and uneven flow of the exhaust gas. Second, in the area with a smaller inner diameter, the acceleration of the airflow can enhance the mixing of bubbles and cleaning liquid, further improving the dust removal effect. Finally, this design can also keep the airflow at a stable flow rate throughout the purification process, thereby optimizing the exhaust gas treatment efficiency and avoiding the deposition or blockage of particulate matter in the exhaust gas.

[0059] In general, the design of the inner diameter of the through hole 18 can effectively adjust the speed and path of the exhaust gas flow, which not only ensures the smoothness of the exhaust gas flow, but also improves the contact efficiency between the exhaust gas and the cleaning liquid, thereby achieving a more efficient dust removal effect. The ingenious design of this structure effectively improves the overall performance of the equipment and ensures the stability and efficiency of the exhaust gas purification process.

[0060] As a preferred embodiment of the present invention, the distance between the top of the separation cover 15 and the bottom of the spray shell 7 is 3 cm to 5 cm. Within this distance range, it can effectively ensure sufficient contact between the exhaust gas and the separation cover 15 and the spray shell 7, and avoid excessive retention of the exhaust gas in this area, thereby ensuring the smooth progress of the entire purification process.

[0061] First, the distance of 3 cm to 5 cm helps the exhaust gas to maintain a certain flow rate when passing through this gap, so that the exhaust gas can be fully distributed in the spray shell 7. This spacing allows the exhaust gas to fully contact and preliminarily remove dust with the water mist in the separation cover 15 before entering the spray shell, thereby effectively removing dust and impurities therein. Moreover, the design of a smaller distance helps to maintain a stable pressure when the exhaust gas flows, avoiding uneven exhaust gas flow caused by excessive gaps, which affects the overall dust removal effect.

[0062] In addition, this distance setting also ensures the coverage effect of the water mist sprayed from the bottom of the spray housing 7. The sprayed water mist can form a uniform atomization effect in this small range, thereby improving the capture efficiency of exhaust gas particles. The water mist forms fine water droplets in this gap, which can effectively absorb the tiny particles in the exhaust gas, causing them to condense quickly and sink by gravity, further improving the dust removal effect.

[0063] The design of this distance also takes into account the water flow and water mist distribution at the bottom of the spray shell 7. If the distance is too small, the density of the water mist may be too high, resulting in excessive water deposition; while if the distance is too large, the water mist may not be able to effectively cover the exhaust gas flow path. Therefore, a distance of 3 cm to 5 cm can ensure the high efficiency of the spray system while avoiding excessive water accumulation, thereby ensuring the stable operation of the entire exhaust gas treatment system.

[0064] In general, the design range of 3 cm to 5 cm ensures the dust removal efficiency and stability during the exhaust gas purification process by optimizing the exhaust gas flow and the effect of water mist spraying, while avoiding excessive water waste and improving the overall equipment efficiency and performance.

[0065] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An exhaust gas dust removal device for white corundum production, comprising a housing (1), an air inlet pipe (3) being arranged at the bottom of the housing (1), and an air outlet pipe (4) being arranged at the top of the housing (1), characterized in that: The air inlet pipe (3) is provided with a control valve (21), the housing (1) is provided with a stirring mechanism (5), the stirring mechanism (5) comprises a driving motor (51) and a rotating rod (52), a plurality of annularly distributed extension tubes (17) are movably mounted at the bottom of the rotating rod (52), a water outlet hole (16) is provided on the side of the extension tube (17), a partition plate 2 (13) is installed inside the housing (1), a plurality of concentrically arranged partition covers (15) are provided on the top of the partition plate 2 (13), the extension tube (17) is located between two adjacent partition covers (15), and a through hole 3 is provided at a position of the partition plate 2 (13) located inside the partition cover (15); The partition cover (15) is provided with a fixed gear ring (19) at its circumference, and the extension tube body (17) is provided with driven teeth (20) meshing with the fixed gear ring (19) at its circumference; A water removal mechanism (8) is provided at the circumference of the spray housing (7), a water pump (6) is provided outside the housing (1), and a water outlet of the water pump (6) is connected to the interior of the spray housing (7) via a water pipe.

2. The tail gas dust removal device for white corundum production according to claim 1, characterized in that: A second fixed mesh plate (12) is installed inside the shell (1), a purification chamber (14) is provided between the second fixed mesh plate (12) and the second partition plate (13), and the purification chamber (14) is filled with adsorption particle material.

3. The tail gas dust removal device for white corundum production according to claim 2, characterized in that: A stirring component (53) is provided on the side of the rotating rod (52) extending into the purification chamber (14).

4. The tail gas dust removal device for white corundum production according to claim 1, characterized in that: A partition plate 1 (10) and a fixed mesh plate 1 (11) are installed inside the shell (1), and a through hole 2 (18) is opened on the partition plate 1 (10). A lifting mechanism (9) is arranged on the partition plate 1 (10) for stirring bubbles flowing at the opening of the through hole 2 (18).

5. The tail gas dust removal device for white corundum production according to claim 4, characterized in that: The lifting mechanism (9) comprises a lifting cover (91) mounted on the bottom of the first partition (10) via a spring, a lifting rod (95) is arranged on the top of the lifting cover (91), a lifting seat (92) is arranged at one end of the lifting rod (95) extending to the top of the first fixed mesh plate (11), a plurality of extension rods (93) are arranged at the bottom of the lifting seat (92), and a stirring side wing (94) is arranged at one end of the extension rod (93) extending to the inside of the second through hole (18).

6. The tail gas dust removal device for white corundum production according to claim 5, characterized in that: The fixed mesh plate (11) is provided with a plurality of threaded holes, and the extension rod (93) is arranged to penetrate through the threaded holes. The circumference of the extension rod (93) is provided with threads that mesh with the inner wall of the threaded hole.

7. The tail gas dust removal device for white corundum production according to claim 6, characterized in that: The lifting cover (91) is an arc-shaped structure, and the side of the lifting cover (91) close to the opening of the air inlet pipe (3) is an inner arc surface.

8. The tail gas dust removal device for white corundum production according to claim 1, characterized in that: The dewatering mechanism (8) comprises a dewatering housing (81) of an annular structure, the dewatering housing (81) being located between the circumferential outer wall of the spray housing (7) and the circumferential inner wall of the housing (1), a dewatering filter element (82) being arranged inside the dewatering housing (81), and a through hole (83) being provided on the circumferential inner wall of the dewatering housing (81).

9. The tail gas dust removal device for white corundum production according to claim 8, characterized in that: A drainage pipe (2) is provided on one side of the shell (1), and one end of the drainage pipe (2) extends to the circumference of the top of the second partition (13).

10. The tail gas dust removal device for white corundum production according to claim 1, characterized in that: The opening inner diameter of the through hole 2 (18) located at the circumference of the partition 1 (10) is larger than the opening inner diameter of the through hole 2 (18) located at the center of the partition 1 (10).

Images