A steel structure chimney with filtering function

Abstract

The present invention relates to the field of flue gas emission devices, and specifically to a steel structure chimney with a filtering function, comprising a chimney main body, an air intake duct is provided at the bottom of the chimney main body, an air vent is provided at the top of the chimney main body, a pre-filter is provided at the air intake duct, a main filter is provided inside the chimney main body, the pre-filter adopts a fiber filter element, and the main filter adopts an activated carbon filter element and a ceramic filter element. A self-cleaning device is provided in the air intake duct and the inside of the chimney main body, the pre-filter adopts a fiber filter element, which is mainly used to remove large particles; the main filter adopts an activated carbon filter element and a ceramic filter element, which removes fine particles and harmful gases step by step, significantly improving the purification effect of exhaust gas, and the self-cleaning device regularly cleans the pre-filter and the main filter to maintain the filtering effect, extend the service life, and reduce the need for frequent replacement of filter elements.

Description

Technical Field

[0001] The invention relates to the field of smoke exhaust devices, in particular to a steel structure chimney with a filtering function. Background Art

[0002] Existing industrial waste gas treatment methods mainly include wet desulfurization, dry desulfurization, selective catalytic reduction (SCR), etc. However, these methods have the following shortcomings:

[0003] High investment cost: Building specialized waste gas treatment facilities requires a large initial investment.

[0004] Complex operation and maintenance: filter media or catalysts need to be replaced regularly, which requires a lot of maintenance work.

[0005] Large floor space: Specialized waste gas treatment equipment occupies a large area, which is difficult to implement for some companies with limited space.

[0006] Limited treatment efficiency: Some methods are not effective in treating specific pollutants and cannot achieve the desired purification effect. Summary of the Invention

[0007] (1) Technical problems solved

[0008] In view of the deficiencies in the prior art, the present invention provides a steel structure chimney with a filtering function.

[0009] (2) Technical solution

[0010] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: A steel structure chimney with a filtering function of the present invention comprises a chimney main body, an air intake pipe is provided at the bottom of the chimney main body, an air vent is provided at the top of the chimney main body, a pre-filter is provided at the air intake pipe, and a main filter is provided inside the chimney main body, the pre-filter adopts a fiber filter element, and the main filter adopts an activated carbon filter element and a ceramic filter element, a self-cleaning device is provided in the air intake pipe and the inside of the chimney main body, and the self-cleaning device is respectively located at the front end of the pre-filter and above the main filter, the self-cleaning device comprises a water guide ring and a water spray pipe, the water guide ring is fixedly mounted on the air intake pipe and the inner wall of the chimney main body, a water connecting pipe is provided on the water guide pipe, and the water connecting pipes on the two water guide rings respectively pass through the air intake pipe and the chimney main body, the water spray pipe is arranged on the water spray pipe in a surrounding manner, and the water spray pipe is arranged obliquely on the water guide ring, a spray chamber is provided at the end of the water spray pipe, and a nozzle is installed in the spray chamber.

[0011] Preferably, the chimney body is a truncated cone-shaped structure, the air intake duct is located at the bottom of the chimney body, and the air intake duct is arranged obliquely on the chimney body.

[0012] Further preferably, the pre-filter and the main filter both include a filter element rack, the filter element rack is provided with a plurality of filter element holes, the fiber filter element, activated carbon filter element and ceramic filter element adopt a disc structure, the fiber filter element is installed in the filter element hole of the pre-filter through a threaded structure, and the activated carbon filter element and ceramic filter element are installed in the filter element hole of the main filter through a threaded structure.

[0013] Again preferably, an emergency discharge port is provided on the bottom side wall of the chimney body, an electric valve 2 is provided at the inlet of the emergency discharge port, and a main filter is provided in the emergency discharge port.

[0014] Preferably, a drainage pipe and an inspection port are provided at the bottom of the chimney body, an inspection cover is fixedly installed on the inspection port by bolts, and an electric valve three is provided on the drainage pipe.

[0015] Further preferably, an electric valve 1 is installed at the end of the spray chamber, and a protective cover is fixedly installed on the outer wall of the water spray pipe, and the protective cover covers the main motor of the electric valve 1.

[0016] Again preferably, a plurality of sensors are provided inside the chimney body, and the sensors include an air pressure sensor and a toxic gas sensor, the air pressure sensor is located below the main filter, and the toxic gas sensor is located above and below the main filter.

[0017] Preferably, a controller is provided on the outer wall of the chimney body, and the controller is equipped with an electrical control system and a wireless transceiver. The controller is electrically connected to the electric valve 1, the electric valve 2, the electric valve 3 and the sensor.

[0018] (3) Beneficial effects

[0019] Compared with the prior art, the present invention provides a steel structure chimney with a filtering function, which has the following beneficial effects:

[0020] Efficient purification:

[0021] Multi-stage filtration system: The pre-filter uses a fiber filter element, which is mainly used to remove large particles; the main filter uses an activated carbon filter element and a ceramic filter element to remove fine particles and harmful gases (such as sulfur dioxide, nitrogen oxides, and volatile organic compounds) step by step, significantly improving the exhaust gas purification effect.

[0022] High adsorption efficiency: The activated carbon filter element has a high adsorption capacity and can effectively remove organic compounds and odors; the ceramic filter element further removes fine particles and other harmful substances, ensuring that the exhaust gas meets environmental standards.

[0023] Easy to operate:

[0024] Automated Control: The controller is electrically connected to Electric Valve 1, Electric Valve 2, Electric Valve 3, and sensors to achieve automated control. Users can easily set parameters and view data through the touch screen interface or remote devices.

[0025] Real-time monitoring: Toxic gas sensors monitor the concentration of harmful gases in exhaust gas in real time and transmit the data to the controller, so that users can understand the operating status of the chimney at any time.

[0026] Low cost:

[0027] Reduced maintenance frequency: The self-cleaning device regularly cleans the pre-filter and main filter to maintain the filtering effect, extend the service life, and reduce the need for frequent filter element replacement.

[0028] By installing several fiber filter elements, activated carbon filter elements and ceramic filter elements in the pre-filter and the main filter respectively, it is convenient to replace and maintain the pre-filter and the main filter at a later time.

[0029] Reduce energy consumption: The frustum-shaped structure and tilted air intake duct design reduce air flow resistance, improve emission efficiency and reduce energy consumption.

[0030] The results are intuitive:

[0031] Data display: The controller is equipped with a display screen that displays the concentration of harmful substances in the exhaust gas in real time, making it easy for users to view and record.

[0032] Data logging: The controller can record gas sensor data and generate historical records and trend analysis reports to facilitate subsequent analysis and improvement.

[0033] Safe and reliable:

[0034] Emergency discharge port: The emergency discharge port is set on the bottom side wall of the chimney body. When the main filtration system fails or the air pressure inside the chimney is too high, the electric valve 2 can be opened through the controller to switch to the emergency discharge mode to ensure production safety.

[0035] Explosion-proof measures: Multiple sensors are installed inside the chimney body, including air pressure sensors, which are used to monitor pressure changes inside the chimney to ensure the normal operation of the system.

[0036] Easy maintenance:

[0037] Inspection port: An inspection port is provided at the bottom of the chimney body, and an inspection cover is fixed on the inspection port by bolts to facilitate the inspection and maintenance of internal equipment.

[0038] Drainage pipe: A drainage pipe is provided at the bottom of the chimney body to discharge the waste water after cleaning. An electric valve is provided on the drainage pipe to facilitate management and maintenance.

[0039] Remote Monitoring:

[0040] Wireless transceiver: The controller is equipped with a wireless transceiver. Through the network connection, users can remotely view the chimney's operating status and monitoring data through mobile phones or computers, and manage and adjust them in a timely manner.

[0041] In summary, the present invention provides a steel chimney with a filtering function, which, through optimized design and intelligent control, achieves efficient, simple, and cost-effective industrial waste gas treatment. This device not only significantly improves waste gas purification efficiency but also reduces operating costs, possessing significant practical application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 This is a schematic diagram of the external structure of the present invention;

[0043] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention;

[0044] Figure 3 This is a schematic diagram of the filter element frame structure of the present invention;

[0045] Figure 4 This is a structural diagram of the self-cleaning device of the present invention;

[0046] Figure 5 This is an enlarged structural diagram of the water spray pipe of the present invention;

[0047] In the figure: 1. Chimney body; 2. Air intake pipe; 3. Emergency discharge port; 4. Pre-filter; 5. Main filter; 6. Water guide ring; 7. Fiber filter element; 8. Activated carbon filter element; 9. Water spray pipe; 10. Spray chamber; 11. Nozzle; 12. Electric valve 1; 13. Water connecting pipe; 14. Filter element holder; 15. Filter element hole; 16. Electric valve 2; 17. Controller; 18. Drain pipe; 19. Electric valve 3; 20. Inspection cover; 21. Protective cover; 22. Toxic gas sensor; 23. Air pressure sensor. DETAILED DESCRIPTION

[0048] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0049] See also Figure 1-5 The present invention provides a steel chimney with a filtering function. Through a multi-stage filtering system and a self-cleaning device, it effectively removes particulate matter and harmful gases from industrial waste gas, ensuring that the exhaust gas meets environmental protection standards. The specific working principle is as follows:

[0050] Chimney main body 1 structure:

[0051] Air inlet pipe 2: located at the bottom of the chimney body 1, used to introduce industrial waste gas to be treated.

[0052] Air vent: located at the top of the chimney body 1, used to discharge the purified gas.

[0053] Pre-filter 4:

[0054] Position: Installed in the air intake duct 2.

[0055] Material: Fiber filter element 7.

[0056] Function: The pre-filter 4 is mainly used to remove large particles, such as dust, fly ash, etc., to prevent these large particles from entering the main filter 5 and extend the service life of the main filter 5.

[0057] Main filter 5:

[0058] Position: Installed inside the chimney body 1.

[0059] Materials: Activated carbon filter element 8 and ceramic filter element.

[0060] Activated carbon filter element 8: used to adsorb organic compounds, harmful gases (such as sulfur dioxide, nitrogen oxides) and odors in exhaust gas.

[0061] Ceramic filter element: used to further remove fine particles and other harmful substances to improve purification effect.

[0062] Function: The main filter 5 removes particulate matter and harmful gases of different sizes from the exhaust gas step by step to ensure that the exhaust gas meets environmental protection standards.

[0063] Self-cleaning device:

[0064] Position: Located at the front end of the pre-filter 4 and above the main filter 5 respectively.

[0065] composition:

[0066] Water guide ring 6: fixedly installed on the air intake pipe 2 and the inner wall of the chimney body 1.

[0067] The water spray pipe 9 is arranged on the water guide ring 6 in a surrounding manner, and the water spray pipe 9 is arranged on the water guide ring 6 at an angle.

[0068] Water receiving pipe 13: connected to an external water source to provide cleaning water for the water spraying pipe 9.

[0069] Spray chamber 10: located at the end of the water spray pipe 9, with a nozzle 11 installed inside.

[0070] Function: The self-cleaning device regularly cleans the pre-filter 4 and the main filter 5 to maintain the filtering effect and extend the service life.

[0071] Working process:

[0072] Start cleaning: When cleaning is required, the controller 17 starts the self-cleaning device.

[0073] Water supply: External water source supplies water to the water guide ring 6 through the water pipe 13.

[0074] Water spraying: The water flows through the water guide ring 6 into the water spray pipe 9, and then is sprayed out through the nozzle 11 to form high-pressure water mist.

[0075] Cleaning: High-pressure water mist is evenly sprayed on the surface of the pre-filter 4 and the main filter 5 to wash away attached particles and impurities.

[0076] Drainage: The wastewater after cleaning is discharged through the drain at the bottom of the chimney, or discharged after treatment through a special wastewater treatment system.

[0077] Real-time monitoring and control:

[0078] Toxic gas sensor 22: A toxic gas sensor 22 is installed inside the chimney. The toxic gas sensor 22 preferably uses a sulfur dioxide (SO2) sensor, a nitrogen oxide (NOx) sensor, a carbon monoxide (CO) sensor, and a volatile organic compound (VOCs) sensor.

[0079] Data transmission: The gas sensor monitors the concentration of various harmful gases in the exhaust gas in real time and transmits the data to the controller 17.

[0080] An alarm system can be configured in the controller 17: when the concentration of the monitored harmful gas exceeds the set threshold, the controller 17 will trigger the alarm system to remind the operator to take corresponding measures. The alarm system can use information alarms and sound and light alarms.

[0081] Data recording: The controller 17 can record the data of the gas sensor and generate historical records and trend analysis reports to facilitate subsequent analysis and improvement.

[0082] emission:

[0083] Purified gas: The purified gas after being processed by the pre-filter 4 and the main filter 5 is discharged through the vent at the top of the chimney.

[0084] Remote Monitoring:

[0085] The controller 17 is equipped with a wireless transceiver so that users can remotely view the operation status and monitoring data of the chimney through a mobile phone or computer and perform management and adjustment in a timely manner.

[0086] Working principles of each preferred technical solution

[0087] Chimney main body 1 structure:

[0088] Truncated cone structure: The chimney body 1 adopts a truncated cone structure, which is conducive to the rapid rise of exhaust gas in the chimney body 1, reduces air flow resistance, and improves emission efficiency.

[0089] Inclined air intake duct 2: The air intake duct 2 is located at the bottom of the chimney body 1 and is inclined on the chimney body 1. This design helps the exhaust gas to enter the chimney smoothly, reduces flow resistance, and facilitates the installation and maintenance of the pre-filter 4.

[0090] Filter element holder 14 and filter element:

[0091] Filter element holder 14 : Both the pre-filter 4 and the main filter 5 include a filter element holder 14 , on which a plurality of filter element holes 15 are provided.

[0092] Filter element structure: The fiber filter element 7, the activated carbon filter element 8 and the ceramic filter element adopt a disc structure.

[0093] Fiber filter element 7: installed in the filter element hole 15 of the pre-filter 4 through a threaded structure, used to remove large particles.

[0094] Activated carbon filter element 8 and ceramic filter element: installed in the filter element hole 15 of the main filter 5 through a threaded structure, respectively used to absorb harmful gases and further remove fine particles;

[0095] Through the above structure, several fiber filter elements 7, activated carbon filter elements 8 and ceramic filter elements are installed in the pre-filter 4 and the main filter 5 respectively, which facilitates the replacement and maintenance of the pre-filter 4 and the main filter 5 in the later stage.

[0096] Emergency exhaust port 3:

[0097] Position: The emergency discharge port 3 is provided on the bottom side wall of the chimney body 1 .

[0098] Electric valve 2 16: An electric valve 2 16 is provided at the entrance of the emergency discharge port 3. When the main filtering system fails or the air pressure inside the chimney body 1 is too high, the electric valve 2 16 can be opened by the controller 17 to switch to the emergency discharge mode to ensure production safety.

[0099] Main filter 5: A main filter 5 is also provided in the emergency discharge port 3, which can purify the exhaust gas to a certain extent even in the emergency discharge mode.

[0100] 18 drainage pipes and inspection ports:

[0101] 18 drainage pipes: 18 drainage pipes are provided at the bottom of the chimney body 1 for discharging the waste water after cleaning.

[0102] Electric valve three 19: An electric valve three 19 is provided on the drain pipe 18, which can be opened and closed by the controller 17, making management and maintenance convenient.

[0103] Inspection port: An inspection port is also provided at the bottom of the chimney body 1, on which an inspection cover 20 is fixedly mounted by bolts, for easy inspection and maintenance of the internal equipment.

[0104] Self-cleaning device:

[0105] Spray chamber 10 and electric valve 12: An electric valve 12 is installed at the end of the spray chamber 10, which can be opened and closed by the controller 17 to realize the automatic cleaning function. When the cleaning work is not in progress, the electric valve 12 can be closed to prevent smoke and dust from blocking the nozzle 11.

[0106] Protective cover 21: A protective cover 21 is fixedly mounted on the outer wall of the water spray pipe 9. The protective cover 21 covers the main motor of the electric valve 12 to protect it from corrosion and damage.

[0107] sensor:

[0108] A plurality of sensors are provided inside the chimney body 1, including an air pressure sensor 23 and a toxic gas sensor 22. The air pressure sensor 23 is located below the main filter 5 and is used to monitor the pressure changes inside the chimney to ensure the normal operation of the system.

[0109] Toxic gas sensor 22: A toxic gas sensor 22 is also provided inside the chimney body 1 for monitoring the concentration of harmful gases in the exhaust gas in real time and transmitting the data to the controller 17.

[0110] Controller 17:

[0111] Position: The controller 17 is arranged on the outer wall of the chimney body 1 .

[0112] Electrical control system: The controller 17 is equipped with an electrical control system for controlling the operation of the entire chimney system.

[0113] Wireless transceiver: The controller 17 is also equipped with a wireless transceiver to enable remote monitoring and data analysis.

[0114] Electrical connection: The controller 17 is electrically connected to the electric valve 1 12, the electric valve 2 16, the electric valve 3 19 and the sensor to achieve automatic control and data acquisition.

[0115] Comprehensive workflow

[0116] Exhaust gas introduction:

[0117] Industrial waste gas is introduced into the chimney through the air inlet pipe 2 and first passes through the pre-filter 4 to remove large particles.

[0118] Multi-stage filtration:

[0119] The pre-filtered exhaust gas enters the main filter 5 in the chimney body 1, and is gradually removed of fine particles and harmful gases through the activated carbon filter element 8 and the ceramic filter element.

[0120] Self-cleaning:

[0121] The self-cleaning device cleans the pre-filter 4 and the main filter 5 regularly to maintain the filtering effect and extend the service life.

[0122] During the cleaning process, high-pressure water mist is evenly sprayed on the filter surface to wash away attached particles and impurities.

[0123] Real-time monitoring:

[0124] The toxic gas sensor 22 monitors the concentration of harmful gases in the exhaust gas in real time and transmits the data to the controller 17 .

[0125] The controller 17 adjusts the operating state of the filtration system according to the monitoring data to ensure that the emission meets the standards.

[0126] When the concentration of harmful gases exceeds a set threshold, the controller 17 triggers the alarm system to remind the operator to take measures.

[0127] emission:

[0128] The purified gas is discharged through the vent at the top of the chimney.

[0129] Remote Monitoring:

[0130] Through the network connection of the wireless transceiver, users can remotely view the operating status and monitoring data of the chimney and conduct timely management and adjustments.

[0131] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A steel chimney with filtering function, characterized in that: The invention comprises a chimney body (1), wherein an air inlet pipe (2) is provided at the bottom of the chimney body (1), an air vent is provided at the top of the chimney body (1), a pre-filter (4) is provided at the air inlet pipe (2), a main filter (5) is provided inside the chimney body (1), the pre-filter (4) adopts a fiber filter element (7), the main filter (5) adopts an activated carbon filter element (8) and a ceramic filter element, and a self-cleaning device is provided inside the air inlet pipe (2) and inside the chimney body (1), and the self-cleaning device is respectively located at the front end of the pre-filter (4) and the upper end of the main filter (5). The self-cleaning device comprises a water guide ring (6) and a water spray pipe (9), the water guide ring (6) is fixedly mounted on the inner wall of the air intake pipe (2) and the chimney body (1), the water guide ring (6) is provided with a water connection pipe (13), and the water connection pipes (13) on the two water guide rings (6) respectively penetrate the air intake pipe (2) and the chimney body (1), the water spray pipe (9) is arranged around the water guide ring (6), and the water spray pipe (9) is arranged obliquely on the water guide ring (6), the end of the water spray pipe (9) is provided with a spray chamber (10), and a nozzle (11) is installed in the spray chamber (10); The chimney body (1) is a truncated cone-shaped structure, the air intake pipe (2) is located at the bottom of the chimney body (1), and the air intake pipe (2) is arranged obliquely on the chimney body (1); The pre-filter (4) and the main filter (5) both include a filter element holder (14), the filter element holder (14) is provided with a plurality of filter element holes (15), the fiber filter element (7), the activated carbon filter element (8) and the ceramic filter element adopt a disc structure, the fiber filter element (7) is installed in the filter element hole (15) of the pre-filter (4) through a threaded structure, and the activated carbon filter element (8) and the ceramic filter element are installed in the filter element hole (15) of the main filter (5) through a threaded structure; An emergency discharge port (3) is provided on the bottom side wall of the chimney body (1), an electric valve 2 (16) is provided at the entrance of the emergency discharge port (3), and a main filter (5) is provided in the emergency discharge port (3); An electric valve 1 (12) is installed at the end of the spray chamber (10), and a protective cover (21) is fixedly installed on the outer wall of the water spray pipe (9), and the protective cover (21) covers the main motor of the electric valve 1 (12); A plurality of sensors are provided inside the chimney body (1), and the sensors include an air pressure sensor (23) and a toxic gas sensor (22). The air pressure sensor (23) is located below the main filter (5), and the toxic gas sensor (22) is located above and below the main filter (5).

2. A steel structure chimney with filtering function according to claim 1, characterized in that: A drainage pipe (18) and an inspection port are provided at the bottom of the chimney body (1); an inspection cover (20) is fixedly mounted on the inspection port by bolts; and an electric valve (19) is provided on the drainage pipe (18).

3. The steel structure chimney with filtering function according to claim 2, characterized in that: A controller (17) is provided on the outer wall of the chimney body (1), and the controller (17) is equipped with an electrical control system and a wireless transceiver. The controller (17) is electrically connected to the electric valve 1 (12), the electric valve 2 (16), the electric valve 3 (19) and the sensor.

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