Dust remover of electric boiler

Abstract

The utility model discloses a dust remover of an electric boiler, which comprises a dust removal tank body, a sealing tank cover is arranged at the end of the dust removal tank body through a connecting shaft block on one side, and the sealing tank cover is used for rotating, moving and separating to facilitate cleaning of the interior of the tank body. The upper end of the inner side of the dust removal tank body is provided with an annular cleaning pipe used for conducting high-pressure cleaning on a filtering structural part in the sealing tank cover, and the corresponding bottom side of the annular cleaning pipe is provided with an annular dust removal pipe used for conducting spraying dust removal on boiler gas. High-pressure water flow is provided for an annular cleaning pipe and an L-shaped water spraying pipe, the inner walls of a filtering structural part and a sewage discharging hopper can be comprehensively and efficiently cleaned in cooperation with a cleaning spray head inclining inwards and a cleaning scraper on a transmission vertical rod, the problems that traditional equipment is complex in cleaning and poor in cleaning effect are solved, and long-term stable operation of the equipment is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of boiler dust removal, and particularly relates to a dust collector for a power boiler. Background Art

[0002] In modern industrial production, power boilers are widely used as important energy conversion equipment. With the increasingly stringent environmental protection requirements and the pursuit of energy utilization efficiency, the performance of the dust removal equipment supporting power boilers becomes particularly crucial. A dust collector that operates efficiently and stably can not only reduce the emissions of harmful pollutants, minimize pollution to the atmospheric environment, but also ensure the smooth operation of the power boiler system, extend the service life of the equipment, and improve energy utilization efficiency. However, traditional dust collectors for power boilers have exposed many problems in practical applications. On the one hand, there are significant deficiencies in equipment cleaning and maintenance. For example, internal filter structure parts and the tank wall surface are prone to accumulating dirt, but the cleaning operation is complex and the effect is not good, making it difficult to ensure that the equipment operates efficiently in the long term. On the other hand, in the spray dust removal link during the dust removal process, the spray effect is not ideal, and it cannot fully contact the boiler gas and adsorb pollutants such as dust in it, resulting in a reduction in dust removal efficiency. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a dust collector for a power boiler to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A dust collector for a power boiler, comprising:

[0005] A dust removal tank body, one end of the dust removal tank body is provided with a sealed tank cover through a connecting shaft block on one side for rotational movement separation to facilitate cleaning the inside of the tank body. An annular cleaning pipe for high-pressure cleaning of the filter structure parts inside the sealed tank cover is provided at the upper end inside the dust removal tank body, and an annular dust removal pipe for spray dust removal of boiler gas is provided corresponding to the bottom side of the annular cleaning pipe;

[0006] A sewage discharge hopper with a conical inner cavity structure is provided at the bottom end inside the dust removal tank body. A transmission vertical rod with a hollow mesh structure is rotatably provided at the center position of the inner cavity of the sewage discharge hopper, and an L-shaped water spray pipe with multiple water spray holes for spraying and cleaning the inner wall of the sewage discharge hopper penetrates into the transmission vertical rod from the upper end.

[0007] Preferably, a water tank is provided on one side outside the dust removal tank body. A high-pressure water pump is connected to the upper end of the water tank, and the water outlet end of the high-pressure water pump is connected to a four-way control valve. The high-pressure water pump can pressurize the water in the water tank to meet the requirements of high-pressure cleaning of the annular cleaning pipe and the L-shaped water spray pipe, enhance the cleaning strength, and effectively remove the stubborn dirt accumulated on the filter structure parts and the inner wall of the sewage discharge hopper, solving the problem of poor cleaning effect of traditional equipment.

[0008] Preferably, the annular cleaning pipe is uniformly provided with inwardly inclined cleaning nozzles at its end, and one side of the annular cleaning pipe is connected to one of the water outlets of the four-way control valve through a pipe. The inwardly inclined cleaning nozzles enable the high-pressure water jet to accurately impact the filter structure inside the sealed tank cover, achieving all-round, no-dead-angle cleaning.

[0009] Preferably, the inner side of the annular dust removal pipe is uniformly provided with nozzles that spray water to form a water mist. One side of the annular dust removal pipe is connected to one end of a four-way control valve through a pipe. The nozzles that spray water to form a mist greatly increase the contact area between water and boiler flue gas, so that dust and other pollutants can be more fully adsorbed by the water mist, effectively improving the effect of spray dust removal.

[0010] Preferably, the top of the transmission vertical rod is provided with a bearing sleeve, and the L-shaped water spray pipe extends through the bearing sleeve to the inner side of the transmission vertical rod, so that the L-shaped water spray pipe does not rotate with the transmission vertical rod. The other end of the L-shaped water spray pipe is connected to one end of the four-way control valve through a pipe. The outer sides of the transmission vertical rod are provided with cleaning scrapers that fit against the inner wall of the sewage hopper to scrape off the dirt deposited on the inner wall of the sewage hopper. The water sprayed from the L-shaped water spray pipe washes the dirt into the sewage pipe for discharge.

[0011] Preferably, a drain pipe is provided through the bottom of the dust removal tank, and a crossbar is provided inside the drain pipe. A waterproof motor is provided on the bottom surface of the crossbar, and the rotating shaft of the waterproof motor is connected to the transmission vertical rod. The waterproof motor provides power for the rotation of the transmission vertical rod, ensuring that the cleaning scraper can continuously and effectively clean the inner wall of the drain hopper.

[0012] Preferably, the dust collector is provided with an air inlet pipe on one side of the exterior and an air outlet pipe on one side of the exterior of the sealed tank cover. A filter plate is provided on the inside of the sealed tank cover. A leak-proof sealing ring is provided on the side of the sealed tank cover that is joined to the dust collector. The filter plate on the inside of the sealed tank cover further filters the sprayed flue gas, thus providing double protection for the dust removal effect.

[0013] Compared with the prior art, the technical effects and advantages of this utility model are as follows: the dust collector of this electric boiler,

[0014] By combining a water tank, a high-pressure water pump, and a four-way control valve, high-pressure water flow is provided to the annular cleaning pipe and the L-shaped spray pipe. Combined with the inwardly tilted cleaning nozzles and the cleaning scraper on the transmission vertical rod, the filter structure and the inner wall of the sewage hopper can be thoroughly and efficiently cleaned. This solves the problem of complex and ineffective cleaning of traditional equipment and ensures long-term stable operation of the equipment.

[0015] The ring-shaped dust collector has nozzles inside that generate mist, which greatly increases the contact area between water and boiler flue gas, making it easier for pollutants such as dust to be adsorbed by the water mist. At the same time, the filter plates inside the sealed tank cover further filter the flue gas. With this dual protection, the dust removal efficiency is effectively improved, meeting increasingly stringent environmental protection requirements. Attached Figure Description

[0016] Figure 1 This is a front internal view of the dust collector tank of this utility model;

[0017] Figure 2 This is a top view of the annular cleaning tube of this utility model;

[0018] Figure 3 This is a top view of the annular dust collector tube of this utility model;

[0019] Figure 4 This is a diagram showing the combination of the transmission vertical rod and the L-shaped water spray pipe of this utility model;

[0020] Figure 5 This is a diagram showing the sealed can lid of this utility model after it has been rotated.

[0021] In the diagram: 1. Dust collector tank; 2. Connecting shaft block; 3. Sealed tank cover; 4. Annular cleaning pipe; 5. Annular dust collector pipe; 6. Sewage hopper; 7. Transmission vertical rod; 8. L-shaped water spray pipe; 9. Water tank; 10. High-pressure water pump; 11. Four-way control valve; 12. Cleaning nozzle; 13. Nozzle; 14. Bearing sleeve; 15. Cleaning scraper; 16. Sewage pipe; 17. Waterproof motor; 18. Air inlet pipe; 19. Air outlet pipe; 20. Filter plate; 21. Leak-proof sealing ring. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-5 This utility model provides a technical solution: a dust collector for an electric boiler, comprising:

[0024] The dust collector tank 1 has a sealing lid 3 at one end, which can be rotated and moved apart via a connecting shaft block 2 to facilitate cleaning of the inside of the tank 1. The connecting shaft block 2 connects the dust collector tank 1 and the sealing lid 3, allowing the sealing lid 3 to rotate and move apart. This design facilitates comprehensive cleaning of the inside of the tank 1. When deep cleaning of dirt and dust accumulation inside the tank is required, the sealing lid 3 can be easily opened, improving the operability of equipment maintenance. On the one hand, the sealing lid 3 fits tightly with the dust collector tank 1 to form a sealed space, ensuring that the flue gas completes the complete dust removal process inside the tank and preventing leakage. On the other hand, the filter plates 20 installed on its inner side perform secondary filtration on the flue gas after spray dust removal, further purifying the gas, improving the dust removal quality, and ensuring that the discharged gas meets environmental protection standards. The upper inner side of the dust removal tank 1 is provided with an annular cleaning pipe 4 for high-pressure cleaning of the filter structure inside the sealed tank cover 3. The annular cleaning pipe 4 obtains water flow pressurized by the high-pressure water pump 10 through the four-way control valve 11, and its end is uniformly provided with inwardly inclined cleaning nozzles 12, which can accurately spray high-pressure water flow onto the filter structure inside the sealed tank cover 3. These high-pressure water flows can powerfully flush the dirt on the surface and gaps of the filter structure, keep the filter structure clean, and enable it to continuously and efficiently perform its filtering function, thereby ensuring the stable operation of the entire dust removal system. Correspondingly, the bottom side of the annular cleaning pipe 4 is provided with an annular dust removal pipe 5 for spray dust removal of boiler gas. The nozzles 13 evenly distributed inside the annular dust removal pipe 5 spray water into a mist, which greatly increases the contact area between water and boiler flue gas. During flue gas flow, water mist can effectively adsorb dust and other pollutants, achieving efficient spray dust removal. By connecting to the four-way control valve 11, the spray volume and pressure can be adjusted according to actual working conditions to meet the dust removal needs of flue gas with different concentrations and flow rates.

[0025] The dust collector tank 1 has a conical inner cavity structure for the discharge hopper 6 at its bottom. This conical structure allows dust and wastewater to naturally collect at the bottom of the hopper under gravity, facilitating centralized discharge. Its unique shape reduces dirt adhesion to the walls, improving discharge efficiency and preventing dirt buildup at the bottom of the tank from affecting dust removal. A perforated mesh structure transmission rod 7 is rotatably mounted at the center of the inner cavity of the discharge hopper 6. Driven by a waterproof motor 17, the transmission rod 7 rotates, and the inclined cleaning scrapers 15 on its outer sides adhere to the inner wall of the discharge hopper 6 as the transmission rod 7 rotates. It can continuously scrape off the dirt adhering to the inner wall of the sewage hopper, peeling the dirt off the wall surface. Combined with the water flow from the L-shaped spray pipe 8, the dirt is flushed into the sewage pipe 16 for discharge, effectively keeping the sewage hopper 6 clean and ensuring smooth sewage discharge. The transmission vertical rod 7 has an L-shaped spray pipe 8 with multiple spray holes inserted from the top, spraying and cleaning the inner wall of the sewage hopper 6. The L-shaped spray pipe 8 is independent of the transmission vertical rod 7 via the bearing sleeve 14 and does not rotate with it. It has multiple spray holes, and under the action of high-pressure water flow provided by the high-pressure water pump 10, it sprays and cleans the inner wall of the sewage hopper 6 from all directions. Working in conjunction with the cleaning scraper 15, it can quickly flush away the scraped dirt, preventing re-adhesion and improving the cleaning efficiency and effect of the sewage hopper.

[0026] A water tank 9 is located on one side of the dust collector tank 1. The water tank 9 stores water for cleaning and spraying, providing a stable water supply for the entire dust collection system. This ensures that the annular cleaning pipe 4, annular dust collection pipe 5, and L-shaped spray pipe 8 always have sufficient water available during equipment operation, guaranteeing continuous dust collection and equipment cleaning. A high-pressure water pump 10 is connected to the upper end of the water tank 9. The high-pressure water pump 10 pressurizes the water in the water tank 9, providing sufficient pressure for high-pressure cleaning of the annular cleaning pipe 4 and L-shaped spray pipe 8. The high-pressure water flow effectively removes stubborn dirt accumulated on the filter components and the inner wall of the sludge hopper. A four-way control valve 11 is connected to the outlet of the high-pressure water pump 10. The four-way control valve 11 distributes and controls the high-pressure water flow output by the high-pressure water pump 10, precisely guiding the water flow to the annular cleaning pipe 4, annular dust collection pipe 5, and L-shaped spray pipe 8 according to the equipment's operating requirements. This flexible water flow distribution method allows each component to obtain appropriate water volume and pressure under different operating conditions.

[0027] The annular cleaning pipe 4 is evenly equipped with inwardly inclined cleaning nozzles 12 at its ends. The even distribution and inward inclination of the cleaning nozzles 12 at the ends of the annular cleaning pipe 4 makes them "precision weapons" for cleaning the filter structure. Driven by high-pressure water flow, each cleaning nozzle 12 can spray water at a specific angle and force onto the filter structure inside the sealed tank cover 3. This precise spraying method ensures that the water flow covers every critical part of the filter structure, achieving a comprehensive and thorough cleaning effect. Even in the hard-to-reach crevices and corners of the filter structure, the high-pressure water flow from the cleaning nozzles 12 can penetrate deep into them, thoroughly washing away accumulated dirt, effectively maintaining the cleanliness and filtration performance of the filter structure. Furthermore, one side of the annular cleaning pipe 4 is connected to one of the outlet ends of the four-way control valve 11 via a pipe.

[0028] The annular dust collector pipe 5 is uniformly equipped with nozzles 13 that spray water to form a water mist. One side of the annular dust collector pipe 5 is connected to one end of a four-way control valve 11 via a pipe. The nozzles 13 installed inside the annular dust collector pipe 5 are the direct determining factor of the spray dust removal effect. They convert water into a fine mist, a key operation that greatly increases the contact area between water and boiler flue gas. During the flue gas flow, these fine water mists can quickly and fully contact and adsorb pollutants such as dust, acting like countless tiny "cleaning guardians" to capture pollutants from the flue gas. The highly efficient atomization and spraying capability of the nozzles 13 significantly improves the spray dust removal effect and is one of the core components ensuring the high dust removal efficiency of the entire dust removal system. It plays a crucial role in reducing the pollutant content in the flue gas and meeting environmental emission requirements.

[0029] A bearing sleeve 14 is provided at the top of the transmission vertical rod 7. The bearing sleeve 14 is installed at the top of the transmission vertical rod 7, so that the L-shaped water spray pipe 8 can operate independently of the transmission vertical rod 7. When the transmission vertical rod 7 rotates to clean the sewage hopper, the L-shaped water spray pipe 8 maintains a stable water spray state, unaffected by the rotation of the transmission vertical rod 7, ensuring the continuity and stability of cleaning the inner wall of the sewage hopper. The L-shaped water spray pipe 8 extends through the bearing sleeve 14 to the inner side of the transmission vertical rod 7, so that the L-shaped water spray pipe 8 does not rotate with the transmission vertical rod 7. The other end of the L-shaped water spray pipe 8 is connected to one end of the four-way control valve 11 through a pipe. Cleaning scrapers 15 are inclined on both sides of the outside of the transmission vertical rod 7 and are attached to the inner wall of the sewage hopper 6 to scrape away dirt. The cleaning scrapers 15 are inclined on both sides of the outside of the transmission vertical rod 7 and are attached to the inner wall of the sewage hopper 6. As the transmission vertical rod 7 rotates, it can continuously scrape off the dirt attached to the inner wall of the sewage hopper, peeling the dirt off the wall surface, creating conditions for subsequent flushing and cleaning by the L-shaped water spray pipe 8.

[0030] A drain pipe 16 runs through the bottom of the dust collector tank 1. The drain pipe 16 serves as a discharge channel for dirt and wastewater, guiding the dirt and wastewater flushed down from the drain hopper 6 to the outside of the equipment for centralized waste discharge. Its design ensures smooth drainage, preventing dirt and wastewater from accumulating inside the equipment. A crossbar is installed inside the drain pipe 16, with a waterproof motor 17 mounted on its bottom surface. The shaft of the waterproof motor 17 is connected to the transmission vertical rod 7. The waterproof motor 17 is installed inside the drain pipe 16 and fixed by the crossbar, its shaft being connected to the transmission vertical rod 7. This provides stable power for the rotation of the transmission vertical rod 7, ensuring that the cleaning scraper 15 can continuously and effectively clean the inner wall of the drain hopper 6.

[0031] An air inlet pipe 18 is provided on the outer side of the dust collector tank 1. The air inlet pipe 18 guides the flue gas generated by the electric boiler into the dust collector tank 1. Its position and pipe diameter design ensure that the flue gas enters the tank smoothly, providing a stable flue gas source for subsequent dust removal treatment. An air outlet pipe 19 is provided on the outer side of the sealed tank cover 3. The air outlet pipe 19 discharges the purified gas after spray dust removal and secondary filtration by the filter plate 20 from the dust removal system and delivers it to the subsequent emission stage or other treatment process to complete the entire dust removal process. A filter plate 20 is provided on the inner side of the sealed tank cover 3. The filter plate 20 is installed on the inner side of the sealed tank cover 3 to perform secondary filtration on the flue gas after spray dust removal. This further removes residual fine dust and impurities in the flue gas, improves the purification level of the discharged gas, and ensures that the discharged gas meets environmental protection requirements. A leak-proof sealing ring 21 is provided on the side where the sealed tank cover 3 and the dust collector tank 1 are joined. The leak-proof sealing ring 21 is located on the side where the sealed tank cover 3 and the dust collector tank 1 are joined, effectively preventing flue gas from leaking from the joint during the dust removal process. This ensures the airtightness of the dust removal system, allowing the flue gas to complete the entire dust removal process in a closed environment.

[0032] Specifically, during use, the flue gas generated by the electric boiler enters the dust collection tank 1 through the inlet pipe 18. At this time, the nozzles 13 inside the annular dust collection pipe 5 spray water into mist, greatly increasing the contact area between the water and the boiler flue gas, so that dust and other pollutants are adsorbed by the water mist, completing the initial spray dust removal. Next, the flue gas is filtered again through the filter plate 20 inside the sealed tank cover 3, and the purified gas is discharged from the outlet pipe 19. In terms of equipment cleaning and maintenance, the water in the water tank 9 is pressurized by the high-pressure water pump 10 and distributed through the four-way control valve 11. A portion of the high-pressure water enters the annular cleaning pipe 4, and the cleaning nozzles 12 at its inward-sloping ends precisely impact the high-pressure water flow onto the filter structure inside the sealed tank cover 3, achieving all-round cleaning. Another portion of the high-pressure water enters the L-shaped spray pipe 8 to spray and clean the inner wall of the sewage hopper 6. Simultaneously, the waterproof motor 17 drives the transmission vertical rod 7 to rotate. The cleaning scrapers 15 on both sides of the transmission vertical rod 7 adhere to the inner wall of the sewage hopper 6, scraping off the dirt. The dirt is then flushed off by water sprayed from the L-shaped water spray pipe 8 and discharged through the sewage pipe 16. The sealed tank cover 3 can be rotated and separated by the connecting shaft block 2, facilitating a thorough cleaning of the inside of the tank 1. The leak-proof sealing ring 21 ensures that there is no smoke leakage during the entire dust removal process.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An electric power boiler dust collector, characterized by, Include: The dust tank (1) is provided with a sealing tank cover (3) for rotating movement separation and facilitating cleaning of the inside of the tank (1) through a connecting shaft block (2) on one side. An annular cleaning pipe (4) is arranged on the upper end of the inside of the dust tank (1) to clean the filter structure inside the sealing tank cover (3). The annular cleaning pipe (4) is provided with an annular dust removal pipe (5) corresponding to the bottom side to spray and remove dust from the boiler gas. The bottom end of the dust tank (1) is provided with a pollution discharge hopper (6) with a conical inner cavity structure. A transmission vertical rod (7) with a hollow mesh structure is arranged at the center of the inner cavity of the pollution discharge hopper (6). An L-shaped water spraying pipe (8) with multiple water spraying holes is arranged in the transmission vertical rod (7) from the upper end.

2. A dust collector for an electric power boiler according to claim 1, characterized in that: The dust tank (1) is provided with a water tank (9) on one side. The upper end of the water tank (9) is connected to a high-pressure water pump (10). The outlet end of the high-pressure water pump (10) is connected to a four-way control valve (11).

3. An electrically powered boiler dust extractor according to claim 2, characterised in that: The end of the annular cleaning pipe (4) is uniformly provided with an inwardly inclined cleaning spray head (12). One side of the annular cleaning pipe (4) is connected to one of the outlet ends of the four-way control valve (11) through a pipeline.

4. A dust collector for an electric power boiler according to claim 3, characterized in that: The inner side of the annular dust removal pipe (5) is uniformly provided with a spray head (13) for spraying water to form water mist. One side of the annular dust removal pipe (5) is connected to one end of the four-way control valve (11) through a pipeline.

5. A dust collector for an electric power boiler according to claim 1, characterized in that: The top end of the transmission vertical rod (7) is provided with a bearing sleeve (14). The L-shaped water spraying pipe (8) extends to the inside of the transmission vertical rod (7) through the bearing sleeve (14), so that the L-shaped water spraying pipe (8) does not rotate with the transmission vertical rod (7). The other end of the L-shaped water spraying pipe (8) is connected to one end of the four-way control valve (11) through a pipeline. The transmission vertical rod (7) is provided with cleaning scrapers (15) on both sides of the outer side, which are attached to the inner wall of the pollution discharge hopper (6) to scrape and clean the dirt.

6. A dust collector for an electric power boiler according to claim 1, characterized in that: The bottom end of the dust tank (1) is provided with a pollution discharge pipe (16). The pollution discharge pipe (16) is provided with a horizontal rod. The bottom surface of the horizontal rod is provided with a waterproof motor (17). The rotating shaft of the waterproof motor (17) is in transmission connection with the transmission vertical rod (7).

7. A dust collector for an electric power boiler according to claim 1, characterized in that: The dust tank (1) is provided with an air inlet pipe (18) on one side of the outside. The sealing tank cover (3) is provided with an air outlet pipe (19) on one side of the outside. The sealing tank cover (3) is provided with a filter plate (20) on the inside. The sealing tank cover (3) is provided with a leak-proof sealing ring (21) on the side combined with the dust tank (1).

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