High-temperature and corrosion-resistant bag-type dust removal device for the kiln tail

Abstract

The present invention discloses a high-temperature and corrosion-resistant bag dust removal device for the kiln tail, which relates to the technical field of bag dust removal devices. The dust removal device includes a filtering mechanism, a leakage prevention mechanism, a cleaning mechanism and a detection mechanism. The leakage prevention mechanism is fixedly connected to the filtering mechanism, the cleaning mechanism is fixedly connected to the filtering mechanism, and the detection mechanism is fixedly connected to the filtering mechanism. The leakage prevention mechanism, the cleaning mechanism and the detection mechanism are all located inside the filtering mechanism. The filtering mechanism, the leakage prevention mechanism and the cleaning mechanism are all electrically connected to the detection mechanism. The leakage prevention mechanism is used for folding the dust bags of the dust removal device. The cleaning mechanism is used for cleaning the residual dust of the filtering mechanism. The detection mechanism is used for detecting the internal flow rate of the filtering mechanism and the damage condition of the leakage prevention mechanism. The linkage between the leakage prevention mechanism and the filtering mechanism controls the safety of the dust bags and prevents condensation. The cleaning mechanism cleans the dust in a periodic pulse or air flow mode. The detection mechanism relies on fluorescence detection to ensure the monitoring of the filtering process.

Description

Technical Field

[0001] The present invention relates to the technical field of bag dust removal devices, specifically a high-temperature and corrosion-resistant bag dust removal device for the kiln tail. Background Art

[0002] Currently, the common bag dust removal devices in industrial production are constantly upgraded and evolved to meet the dust treatment requirements under large-scale, high-temperature, high-humidity or variable working conditions. In high-temperature, high-humidity and highly corrosive gas environments, in order to meet the more stringent requirements of environmental protection emission standards in multiple industries, the research and development of bag dust removal devices play an important role.

[0003] Existing bag dust removal equipment usually includes the following key links: filtration, ash discharge components, and ash cleaning. However, most of them do not have fine leak prevention monitoring, nor do they have detailed support for multi-point flow rate or filter bag mouth detection, and there are often functional deficiencies.

[0004] First of all, in traditional bag dust removal systems, the filter bag folding or sealing mechanism is relatively simple, lacking special dew prevention and automatic folding components. Once exposed to high humidity or thermal shock, the filter bag is prone to deformation or local damage, and it is difficult to detect in time. Secondly, most ash cleaning systems can only perform differential pressure monitoring or timed spraying, and cannot clean the accumulated dust in different areas in real time; although there is heat preservation outside the box, the effects of dew prevention and high-temperature stability are limited, which is easy to cause the filter bag to condense and adhere or the temperature-resistant material to be damaged. Moreover, common detections mainly focus on the overall differential pressure or single-point temperature, lacking detections of the filter bag mouth, flow rate distribution and even damage points. If local damage of the filter bag or the high-temperature and high-humidity state is not detected for a long time, it is extremely easy to cause problems such as dust leakage and condensation and clogging of the bag. Therefore, those skilled in the art have provided a high-temperature and corrosion-resistant bag dust removal device for the kiln tail to solve the problems raised in the above background. Summary of the Invention

[0005] The purpose of the present invention is to provide a high-temperature and corrosion-resistant bag dust removal device for the kiln tail to solve the problems raised in the prior art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] The dust removal device includes a filtering mechanism, a leak prevention mechanism, a cleaning mechanism and a detection mechanism. The leak prevention mechanism is firmly connected to the filtering mechanism, the cleaning mechanism is firmly connected to the filtering mechanism, the detection mechanism is firmly connected to the filtering mechanism. The leak prevention mechanism, the cleaning mechanism and the detection mechanism are all located inside the filtering mechanism. The filtering mechanism, the leak prevention mechanism and the cleaning mechanism are all electrically connected to the detection mechanism. The leak prevention mechanism is used for folding the filter bag of the dust removal device. The cleaning mechanism is used for cleaning the residual dust in the filtering mechanism. The detection mechanism is used for detecting the internal flow rate of the filtering mechanism and the damage condition of the leak prevention mechanism.

[0008] By adopting the above technical solutions, the filtering mechanism is firmly connected and electrically connected to the dust leakage prevention mechanism, the cleaning mechanism, and the detection mechanism respectively, making the entire dust removal device form a compact integrated structure: the dust leakage prevention mechanism is used to fold the cloth bag and prevent dust leakage, the cleaning mechanism timely cleans the residual dust inside after the filtering is completed, and the detection mechanism monitors the internal flow rate and damage conditions in real time. The working process first involves the filtering mechanism completing the main filtration of the dust-containing gas. The dust leakage prevention mechanism maintains the airtightness during the cloth bag operation. The cleaning mechanism regularly cleans the filtered dust. The detection mechanism timely feeds back the abnormal conditions of the filter bag state and flow rate by electrically collecting signals. The key lies in the cooperation of each mechanism: the linkage between the dust leakage prevention mechanism and the filtering mechanism controls the safety of the cloth bag and prevents condensation; the cleaning mechanism cleans the dust in a periodic pulse or air flow mode; the detection mechanism relies on sensing and fluorescence detection and other methods to ensure the precise monitoring of the filtering process, ultimately achieving the effects of reducing emissions, ensuring the dust removal efficiency and equipment safety.

[0009] Furthermore, the filtering mechanism includes a dust removal box, a hopper, a dust gas inlet pipe, a perforated plate, filter bags, an inspection door, a clean gas outlet pipe, a dust discharging assembly, and a sandwich panel. The dust removal box and the hopper are firmly connected. The dust gas inlet pipe is communicated with the dust removal box. The perforated plate is firmly connected to the dust removal box. The filter bags are firmly connected to the perforated plate. The inspection door is firmly connected to the dust removal box. The clean gas outlet pipe is communicated with the dust removal box. The clean gas outlet pipe is located above the dust gas inlet pipe. The dust discharging assembly is firmly connected to the hopper. The hopper is located at the lower end of the dust removal box. The dust discharging assembly is located at the lower end of the hopper. The filter bags are made of glass fiber material on the outside and use a PTFE coating. The sandwich panel is made of rock wool or aluminum silicate fiber material, and the thickness of the sandwich panel is 200 - 250 mm. The sandwich panel is used for the dust removal box to ensure that the temperature drop is controlled within 10°C.

[0010] By adopting the above technical solutions, the filtering mechanism is jointly composed of a dust removal box, a hopper, a dust gas inlet pipe, a perforated plate, filter bags, an inspection door, a clean gas outlet pipe, a dust discharging assembly, and a sandwich panel: the dust removal box and the hopper are firmly connected to form the main frame. The dust gas inlet pipe is communicated with the dust removal box to allow the dust-containing gas to enter. After the perforated plate is firmly connected to the dust removal box, the filter bags can be installed. The filter bag material is made of glass fiber and coated with PTFE on the outside to enhance the temperature and chemical resistance. The inspection door is firmly connected to the dust removal box for easy maintenance. The clean gas outlet pipe is connected to the outlet above the dust removal box to discharge the purified air flow. The dust discharging assembly is firmly connected to the hopper for easy collection and discharge of the accumulated ash. The sandwich panel is made of rock wool or aluminum silicate fiber material, with a thickness of 200 - 250 mm, surrounding the circumferential wall of the dust removal box to control the temperature drop within 10°C. During the working process, after the dust-containing air flow enters the dust removal box from the dust gas inlet pipe, it is filtered by the filter bags, and the dust settles to the hopper; the perforated plate is used to ensure the stability of the filter bags and facilitate replacement, and the inspection door is used for regular maintenance or observing the internal conditions; the purified air finally exits from the clean gas outlet pipe; the key lies in the efficient capture of dust by the filter bags and the heat insulation effect of the sandwich panel to ensure a high filtration efficiency and thermal stability, ultimately achieving the effects of efficient dust removal and temperature control of the air flow.

[0011] Furthermore, the ash discharging assembly includes a star air lock valve, a shearing worm, a scraper, an annular rack and a shearing motor. The star air lock valve is fixedly connected to the ash hopper, the shearing motor is fixedly connected to the ash hopper, the shearing motor is drivingly connected to the annular rack, the scraper is fixedly connected to the annular rack, and the annular rack is drivingly connected to the shearing worm.

[0012] By adopting the above technical solution, the ash discharging assembly is composed of a star air lock valve, a shearing worm, a scraper, an annular rack and a shearing motor: the star air lock valve is fixedly connected to the ash hopper and is used to keep the internal air flow from leaking during ash discharging; the shearing motor is fixedly connected to the ash hopper and is drivingly connected through the annular rack. Driven by the motor, the annular rack rotates to pull the scraper and the shearing worm; the scraper is fixedly connected to the annular rack and is used to clean or scrape the sediment at the bottom of the ash hopper; the linkage between the annular rack and the shearing screw completes the crushing and discharging of the dust. In the working process, the dust falls into the ash hopper after being filtered by the filter bag. The star air lock valve maintains the air lock state. The shearing motor drives the annular rack to drive the scraper to clean the dust and cooperate with the shearing worm to cut the agglomerated dust, and finally discharges the dust smoothly outside the device; relying on the combination of mechanical crushing, scraping and air lock sealing, continuous ash discharging and preventing the reverse flow of external air flow are realized, achieving high-efficiency dust removal and sealing effects.

[0013] Furthermore, the anti-leakage mechanism includes a folding assembly, an iris assembly and an anti-condensation assembly. The folding assembly is fixedly connected to the flower plate, the folding assembly is drivingly connected to the filter bag, the folding assembly is used for folding the filter bag, and the cross sections of both the folding assembly and the filter bag are isosceles trapezoids. The anti-condensation assembly is fixedly connected to the dust removal box, and the iris assembly is fixedly connected to the flower plate.

[0014] By adopting the above technical solution, the anti-leakage mechanism is composed of a folding assembly, an iris assembly and an anti-condensation assembly: the folding assembly is fixedly connected to the flower plate and is drivingly connected to the filter bag, and is used for folding or unfolding the filter bag with an isosceles trapezoid cross section; wherein the cross sections of both the folding assembly and the filter bag are designed as isosceles trapezoids, which can keep close fit during movement; the anti-condensation assembly is fixedly connected to the dust removal box and is used to prevent water vapor condensation in high humidity or high temperature environments; the iris assembly is fixedly connected to the flower plate and is used for adjustable sealing of the passage during maintenance or replacement of the filter bag. In the working process, when the filter bag needs to be folded or unfolded, the folding assembly moves in coordination through the transmission mechanism, deforming the filter bag into an isosceles trapezoid, thereby reducing leakage and air resistance; the anti-condensation assembly prevents condensation through environmental temperature control or air flow regulation; the iris assembly is used for sealing adjustment at the flower plate to cope with different working conditions. Relying on the mechanical control of the folding mechanism and the temperature / humidity regulation of the anti-condensation assembly, the folding anti-leakage of the filter bag and the effective suppression of water vapor condensation are realized, thereby achieving the effects of improving the dust removal efficiency and the equipment life.

[0015] Further, the folding assembly includes a folding hinge rod, a folding ring, a folding elastic member, a fixed rod, a sliding rod, an electromagnet block, and a magnetic block. The fixed rod is tightly connected to the flower plate, the sliding rod is slidably connected to the fixed rod, the electromagnet block is tightly connected to the fixed rod, the folding elastic member is tightly connected to the electromagnet block, the folding elastic member is tightly connected to the magnetic block, the magnetic block is tightly connected to the sliding rod, the electromagnet block and the magnetic block are driven by repulsive magnetic poles, the folding ring is tightly connected to the filter bag, the folding ring is slidably connected to the folding hinge rod, and the sliding rod is drivingly connected to the folding ring.

[0016] By adopting the above technical solution, the folding assembly is jointly composed of a folding hinge rod, a folding ring, a folding elastic member, a fixed rod, a sliding rod, an electromagnet block, and a magnetic block: the fixed rod is tightly connected to the flower plate as a support base point; the sliding rod is slidably connected to the fixed rod to provide an adjustable margin; the electromagnet block is tightly connected to the fixed rod and is also tightly connected to the folding elastic member. The other end of the folding elastic member is tightly connected to the magnetic block, and the magnetic block is fixed to the sliding rod. Through the repulsive drive of the magnetic poles of the electromagnet block and the magnetic block, the flexible push and pull of the sliding rod are realized; the folding ring is tightly connected to the filter bag to directly act on the surface of the filter bag, and is slidably connected to the folding hinge rod. The sliding rod is drivingly connected to the folding ring, so that the filter bag has a controllable retracting and extending space when being opened or folded. During the working process, when it is necessary to fold the filter bag to prevent leakage, the electromagnet block is energized to repel the magnetic block, pushing or retracting the folding ring and the folding hinge rod, and the filter bag moves with the folding ring to achieve a tight fold with an isosceles trapezoidal cross-section; combined with the electromagnetic repulsion force and the elastic support of the elastic member, automatic or semi-automatic folding adjustment is provided for the filter bag, ultimately reducing the dust leakage caused by excessive vibration or irregular unfolding of the cloth bag during high-pressure air or reverse blow dust cleaning.

[0017] Further, the dew condensation prevention assembly includes a cooling box, a heating box, a temperature control pipeline, and a circulation pump. The cooling box is communicated with the temperature control pipeline, the heating box is communicated with the circulation pump, the circulation pump is communicated with the temperature control pipeline, the temperature control pipeline is arranged circumferentially around the dust removal box, the temperature control pipeline is spirally arranged around the dust gas inlet pipe, and the temperature control pipeline is spirally arranged at the lower end of the ash hopper.

[0018] By adopting the above technical solution, the anti-condensation component consists of a cooling box, a heating box, a temperature control pipe and a circulation pump: the cooling box is connected to the temperature control pipe, which is used to perform local cooling when the 400-degree high-temperature flue gas enters the treatment; the heating box is connected to the circulation pump, and the circulation pump drives the heat medium or refrigerant to circulate in the temperature control pipe; the temperature control pipe is distributed around the dust removal box and spirally surrounds the dust gas inlet pipe and the lower end of the ash hopper, and can be heated or cooled locally or overall to prevent condensation or excessive temperature. In the work process, the cooling box and the heating box form a closed-loop control through the circulation pump and the pipeline, and automatically switch the delivery direction and flow of the heat medium or refrigerant according to the real-time temperature requirements; through the hot and cold switching and the partitioned surrounding arrangement of the pipeline, the dust removal box can obtain a suitable temperature in different parts, and the adverse effects of water vapor condensation on the filter bag or dust emission are eliminated, and finally the dust removal efficiency and equipment stability are guaranteed.

[0019] Furthermore, the cleaning mechanism includes an electromagnetic pulse valve, a compressed air storage tank, a venturi, a cleaning component and a fan. The electromagnetic pulse valve and the dust removal box are tightly connected, the compressed air storage tank and the electromagnetic pulse valve are connected, the electromagnetic pulse valve and the venturi are connected, the cleaning component and the dust removal box are tightly connected, the fan and the dust removal box are tightly connected, and the fan is used to control the flow rate of the clean air outlet pipe.

[0020] By adopting the above technical scheme, the cleaning mechanism is composed of an electromagnetic pulse valve, a compressed air storage tank, a venturi, a cleaning component and a blower: the electromagnetic pulse valve is tightly connected to the dust removal box to control the release of compressed air during pulse blowing; the compressed air storage tank is connected to the electromagnetic pulse valve to provide an air source for blowing; after the electromagnetic pulse valve and the venturi are connected, the airflow is accelerated and introduced above the filter bag at the moment of blowing; the cleaning component is tightly connected to the dust removal box to further assist in cleaning the dust on the surface of the filter bag; the blower is tightly connected to the dust removal box to adjust or control the outlet air flow rate at the clean air outlet pipe. In the working process, when the dust accumulation in the filter bag is too thick or the resistance increases, the electromagnetic pulse valve opens, and the high-pressure air is sprayed into the inside of the filter bag through the venturi, forming a reverse impact and shaking off the attached dust; the cleaning component is supplemented by brushing or secondary air sweeping; relying on pulse airflow and mechanical auxiliary means, the filter bag can be periodically cleaned and a low resistance can be maintained, thereby improving the filtration efficiency and extending the life of the filter bag.

[0021] Furthermore, the cleaning component includes an electric slide rail, a lifting hydraulic cylinder, a cleaning brush and a cleaning motor. The lifting hydraulic cylinder and the electric slide rail are slidingly connected, the lifting hydraulic cylinder and the cleaning motor are transmission connected, and the cleaning motor and the cleaning brush are transmission connected.

[0022] By adopting the above technical solution, the cleaning component is composed of an electric slide rail, a lifting hydraulic cylinder, a cleaning brush and a cleaning motor: the electric slide rail is slidably connected to the lifting hydraulic cylinder, facilitating multi-position movement and cleaning inside the dust removal box; the lifting hydraulic cylinder is drivingly connected to the cleaning motor, realizing the up-and-down or angle adjustment of the cleaning brush in a hydraulic manner; the cleaning motor is drivingly connected to the cleaning brush, driving the bristles to rotate or vibrate, thereby actively removing the residual dust on the surface of the filter bag. During the working process, under the command of the electric slide rail, the cleaning component moves to the designated position of the filter bag, and the lifting hydraulic cylinder cooperates with the cleaning motor to push the cleaning brush against the filter bag, realizing mechanical brushing or vibration; it combines electric drive and hydraulic thrust, and with the flexible arrangement of the slide rail, to accurately and efficiently remove the dust accumulated on the surface of each filter bag, ultimately achieving the regeneration and maintenance of the filter bag by the cleaning mechanism, improving the filtration effect and extending the service life of the filter bag.

[0023] Furthermore, the detection mechanism includes a fluorescence detection component, a flow rate sensor and a temperature sensor. The fluorescence detection component is fixedly connected to the dust removal box, the flow rate sensor is fixedly connected to the dust removal box, and the temperature sensor is fixedly connected to the dust removal box.

[0024] By adopting the above technical solution, the detection mechanism consists of a fluorescence detection component, a flow rate sensor and a temperature sensor: the fluorescence detection component is fixedly connected to the dust removal box, used for detecting the damage of the filter bag or the leak prevention mechanism; the flow rate sensor is fixedly connected to the dust removal box, used for real-time monitoring of the air flow velocity inside the dust removal box or between the filter bags; the temperature sensor is fixedly connected to the dust removal box, used for feedback of the current internal temperature. During the working process, when the dust-containing air flow passes through the filter bag or performs dust cleaning and leak prevention operations, the detection mechanism captures the changes in air flow velocity and temperature at any time. Once an overlimit or abnormal fluctuation occurs, it sends an alarm to the control system through electrical connection; based on the sensors, multi-parameter monitoring of the flow rate, temperature and fluorescence signal (if there is damage or dust leakage) is carried out to ensure the safe and efficient operation of the whole machine and timely detection of faults.

[0025] Furthermore, the fluorescence detection component includes a first fluorescence nozzle, a second fluorescence nozzle and a fluorescence detector. The fluorescence detector is used for detecting the intensity and color change of the fluorescence signal. The first fluorescence nozzle is fixedly connected to the dust removal box, the second fluorescence nozzle is fixedly connected to the perforated plate. The first fluorescence nozzle is used for spraying in the unfiltered area, the second fluorescence nozzle is used for spraying at the mouth of each filter bag, and the fluorescence detector is fixedly connected to the perforated plate.

[0026] By adopting the above technical solution, the fluorescence detection component is composed of a first fluorescence nozzle, a second fluorescence nozzle and a fluorescence detector: the first fluorescence nozzle is firmly connected to the dust removal box and is used for spraying fluorescent substances in the unfiltered area; the second fluorescence nozzle is firmly connected to the flower plate and is used for directionally spraying fluorescence on the mouths of each filter bag; the fluorescence detector is firmly connected to the flower plate and is used for monitoring the intensity and color change of the fluorescence signal to determine whether the filter bag or the leak-proof mechanism is damaged or there is an abnormal flow rate. In the working process, the first fluorescence nozzle first sprays fluorescence in the unfiltered area as a reference mark, and then the second fluorescence nozzle applies the fluorescence to the mouth of the filter bag, and the fluorescence detector observes the optical reaction after spraying; by using the appearance characteristics of the fluorescent substance on the surface of the filter bag or the leak area, once the filter bag leaks or the air flow is abnormal, the detector records the abnormal optical signal intensity and color change, and transmits the information to the control system through the electrical connection of the detection mechanism. Finally, during the operation of the dust removal device, the filter bag breakage or abnormal flow rate can be quickly and effectively detected, improving the safety and maintenance efficiency of the equipment.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0028] In the present invention, by arranging a leak-proof mechanism and a cleaning mechanism in the filtering mechanism, and firmly connecting the two to the filtering mechanism and electrically connecting them to the detection mechanism, the synchronous management of the folding seal of the filter bag and the dust residue is realized. Among them, the leak-proof mechanism includes a folding component, an iris component and an anti-condensation component: the folding component realizes the folding of the filter bag in an isosceles trapezoidal cross-section through small structures such as folding hinge rods, folding rings, electromagnetic blocks and magnetic blocks to prevent dust leakage; the iris component is firmly connected to the flower plate and is used for realizing adjustable sealing during maintenance or replacement of the filter bag; the anti-condensation component adopts a cooling box, a heating box, a temperature control pipeline and a circulation pump, which are arranged circumferentially around the dust removal box and spirally surround the dust gas inlet pipe and the lower end of the ash hopper, and can transport cold / hot media according to temperature changes to avoid bag sticking or dust leakage caused by condensation. The cleaning mechanism realizes the coordinated actions of pulse jetting and mechanical cleaning through an electromagnetic pulse valve, a compressed air storage tank, a venturi tube, an electric slide rail, a lifting hydraulic cylinder, a cleaning brush, etc.: when the resistance or dust accumulation of the filter bag reaches the threshold value, the electromagnetic pulse valve instantaneously releases compressed air and supplements it with the mechanical dust removal of the cleaning brush, greatly improving the regeneration efficiency and leak-proof effect of the filter bag.

[0029] The filtering mechanism consists of a dust removal box, a dust hopper, a dust gas inlet pipe, a perforated plate, filter bags, an inspection door, a clean gas outlet pipe, a dust discharging assembly, a sandwich panel, etc. The core lies in forming a primary filtration by the fastening method of the perforated plate and the filter bags, and the dust hopper and the dust discharging assembly (including small structures such as a star air lock valve, a shearing worm, a scraper, an annular rack, etc.) achieve secondary ash falling and directional dust discharge. The sandwich panel is made of rock wool or aluminum silicate fiber with a thickness of 200 - 250 mm, which can control the temperature drop within 10 °C to avoid condensation or corrosion caused by the sudden drop in the treatment of high-temperature flue gas at 400 degrees. At the same time, in the anti-condensation assembly, the cooling box and the heating box are spirally arranged circumferentially on the temperature control pipes at the lower ends of the dust gas inlet pipe and the dust hopper, and the heat / cooling medium flows through the circulation pump, stabilizing the temperature gradient inside the dust removal box and protecting the service life of the filter bags. Such multi-layer collaborative filtration and temperature regulation can take into account both the dust collection efficiency and the safety of the filter bags, reducing problems such as damage or condensation caused by temperature fluctuations.

[0030] In terms of the detection mechanism, the present invention incorporates a fluorescence detection assembly, a flow rate sensor, and a temperature sensor into the filtering mechanism: The fluorescence detection assembly consists of a first fluorescence nozzle, a second fluorescence nozzle, and a fluorescence detector. The first fluorescence nozzle sprays fluorescence in the unfiltered area, the second fluorescence nozzle sprays at each filter bag mouth, and the fluorescence detector is fastened to the perforated plate, accurately identifying filter bag damage or abnormal flow rate by detecting the intensity and color change of the fluorescence signal; The flow rate sensor continuously records the flue gas flow velocity, and the temperature sensor monitors the temperature inside the box. Once there is an overlimit or abnormal fluctuation, the detection mechanism transmits the data to the control system through electrical connection, providing early warning or shutdown maintenance prompts for the operator. Compared with the prior art, this method of combining fluorescence detection with multi-parameter monitoring of flow rate and temperature can effectively prevent long-term dust leakage caused by minor damage, and accurately evaluate the dust removal effect and the health status of the filter bags, realizing active safety management and maintenance of the whole machine system, and significantly improving the stability and service life of the dust removal device. Brief Description of the Drawings

[0031] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 is a schematic diagram of the structure of the filtering mechanism of the present invention;

[0033] Figure 3 is a schematic diagram of the structure of the dust discharging assembly of the present invention;

[0034] Figure 4 is a schematic diagram of the structure of the folding assembly of the present invention;

[0035] Figure 5 is a schematic diagram of the structure of the anti-condensation assembly of the present invention;

[0036] Figure 6 is a schematic diagram of the structure of the cleaning mechanism of the present invention;

[0037] Figure 7 This is a schematic structural diagram of the cleaning component of the present invention;

[0038] Figure 8 This is a schematic structural diagram of the fluorescence detection component of the present invention.

[0039] In the figure: 1. Filter mechanism; 11. Dust removal box; 12. Hopper; 13. Dust gas inlet pipe; 14. Ceiling plate; 15. Filter bag; 16. Inspection door; 17. Clean gas outlet pipe; 18. Ash discharge component; 181. Star-shaped air lock valve; 182. Shearing worm; 183. Scraper; 184. Annular rack; 185. Shearing motor; 19. Sandwich plate; 2. Leak prevention mechanism; 21. Folding component; 211. Folding hinge rod; 212. Folding ring; 213. Folding elastic member; 214. Fixed rod; 215. Sliding rod; 216. Electromagnet; 217. Magnetic block; 22. Iris component; 23. Anti-condensation component; 231. Cooling box; 232. Heating box; 233. Temperature control pipe; 234. Circulation pump; 3. Cleaning mechanism; 31. Electromagnetic pulse valve; 32. Compressed air storage tank; 33. Venturi tube; 34. Cleaning component; 341. Electric slide rail; 342. Lifting hydraulic cylinder; 343. Cleaning brush; 344. Cleaning motor; 35. Fan; 4. Detection mechanism; 41. Fluorescence detection component; 411. First fluorescence nozzle; 412. Second fluorescence nozzle; 413. Fluorescence detector; 42. Flow rate sensor; 43. Temperature sensor. Detailed implementation manners

[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0041] Please refer to Figure 1 - Figure 8 As shown, the present invention provides a technical solution for a high-temperature and corrosion-resistant bag-type dust removal device for the kiln tail:

[0042] The dust removal device includes a filter mechanism 1, a leak prevention mechanism 2, a cleaning mechanism 3, and a detection mechanism 4. The leak prevention mechanism 2 and the filter mechanism 1 are firmly connected, the cleaning mechanism 3 and the filter mechanism 1 are firmly connected, the detection mechanism 4 and the filter mechanism 1 are firmly connected. The leak prevention mechanism 2, the cleaning mechanism 3, and the detection mechanism 4 are all located inside the filter mechanism 1. The filter mechanism 1, the leak prevention mechanism 2, and the cleaning mechanism 3 are all electrically connected to the detection mechanism 4. The leak prevention mechanism 2 is used for folding the cloth bag of the dust removal device, the cleaning mechanism 3 is used for cleaning the residual dust in the filter mechanism 1, and the detection mechanism 4 is used for detecting the internal flow rate of the filter mechanism 1 and the damage condition of the leak prevention mechanism 2.

[0043] By adopting the above technical solution, the filtering mechanism 1 is fixedly connected and electrically connected to the dust leakage prevention mechanism 2, the cleaning mechanism 3, and the detection mechanism 4 respectively, so that the entire dust removal device forms a compact integrated structure: the dust leakage prevention mechanism 2 is used to fold the cloth bag and prevent dust leakage, the cleaning mechanism 3 timely cleans the residual dust inside after the filtering is completed, and the detection mechanism 4 monitors the internal flow rate and damage conditions in real time. The working process first filters the dust-containing gas mainly by the filtering mechanism 1. The dust leakage prevention mechanism 2 maintains the airtightness during the cloth bag operation. The cleaning mechanism 3 regularly cleans the filtered dust. The detection mechanism 4 timely feedbacks the state of the filter bag 15 and the abnormal flow rate by electrically collecting signals. It lies in the cooperation of each mechanism: the linkage between the dust leakage prevention mechanism 2 and the filtering mechanism 1 controls the safety of the cloth bag and prevents condensation; the cleaning mechanism 3 cleans the dust in a periodic pulse or air flow mode; the detection mechanism 4 relies on sensing and fluorescence detection to ensure the accurate monitoring of the filtering process, and finally achieves the effects of reducing emissions, ensuring the dust removal efficiency and equipment safety.

[0044] Furthermore, the filtering mechanism 1 includes a dust removal box 11, a dust hopper 12, a dust gas inlet pipe 13, a perforated plate 14, a filter bag 15, an inspection door 16, a clean gas outlet pipe 17, a dust discharging assembly 18, and a sandwich panel 19. The dust removal box 11 and the dust hopper 12 are fixedly connected. The dust gas inlet pipe 13 is communicated with the dust removal box 11. The perforated plate 14 and the dust removal box 11 are fixedly connected. The filter bag 15 and the perforated plate 14 are fixedly connected. The inspection door 16 and the dust removal box 11 are fixedly connected. The clean gas outlet pipe 17 is communicated with the dust removal box 11. The clean gas outlet pipe 17 is located above the dust gas inlet pipe 13. The dust discharging assembly 18 and the dust hopper 12 are fixedly connected. The dust hopper 12 is located at the lower end of the dust removal box 11. The dust discharging assembly 18 is located at the lower end of the dust hopper 12. The filter bag 15 is made of glass fiber material on the outside and uses a PTFE coating. The sandwich panel 19 is made of rock wool or aluminum silicate fiber. The thickness of the sandwich panel 19 is 200 - 250 mm. The sandwich panel 19 is used for the dust removal box 11 to ensure that the temperature drop is controlled within 10°C.

[0045] By adopting the above technical solution, the filtering mechanism 1 is jointly composed of a dust removal box 11, a hopper 12, a dust gas inlet pipe 13, a perforated plate 14, filter bags 15, an inspection door 16, a clean gas outlet pipe 17, a dust discharging assembly 18 and a sandwich panel 19: The dust removal box 11 is fixedly connected to the hopper 12 to form a main frame, and the dust gas inlet pipe 13 is connected to the dust removal box 11 to allow the dust-containing gas to enter; The perforated plate 14 is fixedly connected to the dust removal box 11 to install the filter bags 15. The filter bags 15 are made of glass fiber and coated with PTFE on the outside to enhance temperature and chemical resistance; The inspection door 16 is fixedly connected to the dust removal box 11 for maintenance; The clean gas outlet pipe 17 is connected to the outlet above the dust removal box 11 to discharge the purified air flow; The dust discharging assembly 18 is fixedly connected to the hopper 12 to facilitate the collection and discharge of accumulated ash; The sandwich panel 19 is made of rock wool or aluminum silicate fiber, with a thickness of 200-250 mm, and surrounds the peripheral wall of the dust removal box 11 to control the temperature drop within 10°C. During the working process, after the dust-containing air flow enters the dust removal box 11 from the dust gas inlet pipe 13, it is filtered by the filter bags 15, and the dust settles to the hopper 12; The perforated plate 14 is used to stabilize the filter bags 15 and facilitate replacement, and the inspection door 16 is used for regular maintenance or observing the internal conditions; The purified air is finally discharged from the clean gas outlet pipe 17; By utilizing the high-efficiency dust capture of the filter bags 15 and the heat insulation effect of the sandwich panel 19, high filtering efficiency and thermal stability are ensured, and finally high-efficiency dust removal and temperature control effects on the air flow are achieved.

[0046] Furthermore, the dust discharging assembly 18 includes a star air lock valve 181, a shearing worm 182, a scraper 183, an annular rack 184 and a shearing motor 185. The star air lock valve 181 is fixedly connected to the hopper 12, the shearing motor 185 is fixedly connected to the hopper 12, the shearing motor 185 is drivingly connected to the annular rack 184, the scraper 183 is fixedly connected to the annular rack 184, and the annular rack 184 is drivingly connected to the shearing worm 182.

[0047] By adopting the above-mentioned technical solution, the ash discharge component 18 is composed of a star-shaped air lock valve 181, a shear worm 182, a scraper 183, an annular rack 184 and a shear motor 185: the star-shaped air lock valve 181 is tightly connected to the ash hopper 12, and is used to keep the internal airflow from leaking during ash discharge; the shear motor 185 is tightly connected to the ash hopper 12 and is connected through the annular rack 184. Under the drive of the motor, the annular rack 184 rotates to pull the scraper 183 and the shear worm 182; the scraper 183 is tightly connected to the annular rack 184, and is used to clean or scrape off the deposits at the bottom of the ash hopper 12; the linkage between the annular rack 184 and the shear worm 182 completes the crushing and discharge of the dust. During the working process, the dust is filtered by the filter bag 15 and then falls into the ash hopper 12. The star-shaped air lock valve 181 maintains the air lock state. The shear motor 185 drives the annular rack 184 to drive the scraper 183 to clean the dust and cooperate with the shear worm 182 to cut the agglomerated dust into pieces, and finally the dust is smoothly discharged out of the device. Relying on the combination of mechanical crushing, scraping and air lock sealing, continuous ash discharge is realized and external air backflow is prevented, achieving efficient dust removal and sealing effects.

[0048] Furthermore, the anti-leakage mechanism 2 includes a folding component 21, an iris component 22 and an anti-condensation component 23. The folding component 21 is fastened to the flower plate 14, the folding component 21 is transmission-connected to the filter bag 15, the folding component 21 is used for folding the filter bag 15, the cross-sections of the folding component 21 and the filter bag 15 are both isosceles trapezoids, the anti-condensation component 23 is fastened to the dust removal box 11, and the iris component 22 is fastened to the flower plate 14.

[0049] By adopting the above technical solution, the anti-leakage mechanism 2 is composed of a folding component 21, an iris component 22 and an anti-condensation component 23: the folding component 21 is fastened to the flower plate 14 and is transmission-connected to the filter bag 15, and is used to fold or unfold the filter bag 15 into an isosceles trapezoidal cross section; wherein the folding component 21 and the filter bag 15 are both designed to be isosceles trapezoidal in cross section to keep a close fit during movement; the anti-condensation component 23 is fastened to the dust removal box 11, and is used to prevent water vapor condensation in a high humidity or high temperature environment; the iris component 22 is fastened to the flower plate 14, and is used to adjustably seal the passage when repairing or replacing the filter bag 15. In the work process, when the filter bag 15 needs to be folded or unfolded, the folding component 21 moves in coordination with the transmission mechanism, so that the filter bag 15 is deformed into an isosceles trapezoidal shape, thereby reducing leakage and wind resistance; the anti-condensation component 23 prevents condensation by controlling the ambient temperature or adjusting the airflow; the iris component 22 is used for sealing adjustment at the flower plate 14 to cope with different working conditions. By relying on the mechanical control of the folding mechanism and the temperature / humidity regulation of the anti-condensation component 23, the folding and leakage prevention of the filter bag 15 and the effective suppression of water vapor condensation are achieved, thereby achieving the effect of improving the dust removal efficiency and the life of the equipment.

[0050] Further, the folding assembly 21 includes a folding hinge rod 211, a folding ring 212, a folding elastic member 213, a fixed rod 214, a sliding rod 215, an electromagnet block 216, and a magnetic block 217. The fixed rod 214 is fixedly connected to the ceiling plate 14. The sliding rod 215 is slidably connected to the fixed rod 214. The electromagnet block 216 is fixedly connected to the fixed rod 214. The folding elastic member 213 is fixedly connected to the electromagnet block 216. The folding elastic member 213 is fixedly connected to the magnetic block 217. The magnetic block 217 is fixedly connected to the sliding rod 215. The electromagnet block 216 and the magnetic block 217 are driven by the repulsion of magnetic poles. The folding ring 212 is fixedly connected to the filter bag 15. The folding ring 212 is slidably connected to the folding hinge rod 211. The sliding rod 215 is drivingly connected to the folding ring 212.

[0051] By adopting the above technical solution, the folding assembly 21 is jointly composed of a folding hinge rod 211, a folding ring 212, a folding elastic member 213, a fixed rod 214, a sliding rod 215, an electromagnet block 216, and a magnetic block 217: The fixed rod 214 is fixedly connected to the ceiling plate 14 as a support base point; The sliding rod 215 is slidably connected to the fixed rod 214 to provide an adjustable margin; The electromagnet block 216 is fixedly connected to the fixed rod 214 and is also fixedly connected to the folding elastic member 213. The other end of the folding elastic member 213 is fixedly connected to the magnetic block 217, and the magnetic block 217 is fixed to the sliding rod 215. Through the repulsion drive of the magnetic poles between the electromagnet block 216 and the magnetic block 217, the flexible push and pull of the sliding rod 215 is realized; The folding ring 212 is fixedly connected to the filter bag 15 to directly act on the surface of the filter bag 15, and is slidably connected to the folding hinge rod 211. The sliding rod 215 is drivingly connected to the folding ring 212, so that the filter bag 15 has a controllable retracting and deploying space when being opened or folded. During the working process, when it is necessary to fold the filter bag 15 to prevent leakage, the electromagnet block 216 is energized to repel the magnetic block 217, pushing or retracting the folding ring 212 and the folding hinge rod 211, and the filter bag 15 moves with the folding ring 212 to achieve a tight fold with an isosceles trapezoidal cross-section; By combining the electromagnetic repulsion force with the elastic support of the elastic member, automatic or semi-automatic folding adjustment is provided for the filter bag 15, ultimately reducing dust leakage caused by excessive vibration or irregular unfolding of the cloth bag during high-pressure air or reverse blowing for dust cleaning.

[0052] Further, the dew condensation prevention assembly 23 includes a cooling box 231, a heating box 232, a temperature control pipeline 233, and a circulation pump 234. The cooling box 231 is communicated with the temperature control pipeline 233. The heating box 232 is communicated with the circulation pump 234. The circulation pump 234 is communicated with the temperature control pipeline 233. The temperature control pipeline 233 is arranged circumferentially around the dust removal box 11. The temperature control pipeline 233 is spirally arranged around the dust gas inlet pipe 13. The temperature control pipeline 233 is spirally arranged at the lower end of the ash hopper 12.

[0053] By adopting the above technical solutions, the anti-condensation component 23 is composed of a cooling box 231, a heating box 232, a temperature control pipeline 233 and a circulation pump 234: The cooling box 231 is connected to the temperature control pipeline 233 and is used for locally cooling when high-temperature flue gas at 400 degrees enters for treatment; The heating box 232 is communicated with the circulation pump 234, and the circulation pump 234 pushes the heat medium or refrigerant to circulate in the temperature control pipeline 233; The temperature control pipeline 233 is circumferentially distributed around the dust removal box 11 and spirally surrounds the lower ends of the dust gas inlet pipe 13 and the ash hopper 12, and can perform heating or cooling regulation in a local or overall range to prevent condensation or excessive temperature. In the working process, the cooling box 231 and the heating box 232 form a closed-loop control through the circulation pump 234 and the pipeline, and automatically switch the conveying direction and flow rate of the heat medium or refrigerant according to the real-time temperature demand; By means of heat and cold switching and circumferential layout of the pipeline in different zones, the dust removal box 11 can obtain appropriate temperatures at different positions, eliminating the adverse effects of water vapor condensation on the filter bag 15 or dust emission, and finally ensuring the dust removal efficiency and equipment stability.

[0054] Further, the cleaning mechanism 3 includes an electromagnetic pulse valve 31, a compressed air storage tank 32, a venturi tube 33, a cleaning component 34 and a fan 35. The electromagnetic pulse valve 31 is fixedly connected to the dust removal box 11, the compressed air storage tank 32 is communicated with the electromagnetic pulse valve 31, the electromagnetic pulse valve 31 is communicated with the venturi tube 33, the cleaning component 34 is fixedly connected to the dust removal box 11, the fan 35 is fixedly connected to the dust removal box 11, and the fan 35 is used for controlling the flow rate of the clean gas outlet pipe 17.

[0055] By adopting the above technical solutions, the cleaning mechanism 3 is composed of an electromagnetic pulse valve 31, a compressed air storage tank 32, a venturi tube 33, a cleaning component 34 and a fan 35: The electromagnetic pulse valve 31 is fixedly connected to the dust removal box 11 and is used for controlling the release of compressed air during pulse jetting; The compressed air storage tank 32 is communicated with the electromagnetic pulse valve 31 to provide a gas source for jetting; After the electromagnetic pulse valve 31 is communicated with the venturi tube 33, the air flow is accelerated and introduced above the filter bag 15 at the moment of jetting; The cleaning component 34 is fixedly connected to the dust removal box 11 and is used for further assisting in cleaning the dust accumulated on the surface of the filter bag 15; The fan 35 is fixedly connected to the dust removal box 11 and is used for adjusting or controlling the air flow rate at the clean gas outlet pipe 17. In the working process, when the dust accumulated on the filter bag 15 is too thick or the resistance rises, the electromagnetic pulse valve 31 is opened, and high-pressure air is sprayed into the interior of the filter bag 15 through the venturi tube 33 to form a reverse impact and shake off the attached dust; The cleaning component 34 such as brushing or secondary air sweeping is used for supplementary cleaning; Relying on the pulse air flow and mechanical auxiliary means, the periodic cleaning of the filter bag 15 is realized and the resistance is maintained at a low level, thereby improving the filtration efficiency and prolonging the service life of the filter bag 15.

[0056] Further, the cleaning component 34 includes an electric slide rail 341, a lifting hydraulic cylinder 342, a cleaning brush 343, and a cleaning motor 344. The lifting hydraulic cylinder 342 is slidably connected to the electric slide rail 341. The lifting hydraulic cylinder 342 is drivingly connected to the cleaning motor 344. The cleaning motor 344 is drivingly connected to the cleaning brush 343.

[0057] By adopting the above technical solution, the cleaning component 34 is composed of an electric slide rail 341, a lifting hydraulic cylinder 342, a cleaning brush 343, and a cleaning motor 344: The electric slide rail 341 is slidably connected to the lifting hydraulic cylinder 342, facilitating multi-position movement and cleaning inside the dust removal box 11; The lifting hydraulic cylinder 342 is drivingly connected to the cleaning motor 344, achieving up-and-down or angle adjustment of the cleaning brush 343 through a hydraulic method; The cleaning motor 344 is drivingly connected to the cleaning brush 343, driving the bristles to rotate or vibrate, thereby actively removing the residual dust on the surface of the filter bag 15. During the working process, under the command of the electric slide rail 341, the cleaning component moves to the position of the specified filter bag 15, and the lifting hydraulic cylinder 342 cooperates with the cleaning motor 344 to push the cleaning brush 343 against the filter bag 15, realizing mechanical brushing or vibration; It combines electric drive with hydraulic thrust and makes flexible arrangements with the slide rail to accurately and efficiently remove the dust accumulated on the surface of each filter bag 15, ultimately achieving the regeneration and maintenance of the filter bag 15 by the cleaning mechanism 3, improving the filtration effect and extending the service life of the filter bag 15.

[0058] Further, the detection mechanism 4 includes a fluorescence detection component 41, a flow rate sensor 42, and a temperature sensor 43. The fluorescence detection component 41 is fixedly connected to the dust removal box 11. The flow rate sensor 42 is fixedly connected to the dust removal box 11. The temperature sensor 43 is fixedly connected to the dust removal box 11.

[0059] By adopting the above technical solution, the detection mechanism 4 is composed of a fluorescence detection component 41, a flow rate sensor 42, and a temperature sensor 43: The fluorescence detection component 41 is fixedly connected to the dust removal box 11, used to detect the damage of the filter bag 15 or the leakage prevention mechanism 2; The flow rate sensor 42 is fixedly connected to the dust removal box 11, used to monitor the air flow rate inside the dust removal box 11 or between the filter bags 15 in real time; The temperature sensor 43 is fixedly connected to the dust removal box 11, used to feedback the current internal temperature. During the working process, when the dust-containing air flow passes through the filter bag 15 or performs dust cleaning and leakage prevention operations, the detection mechanism 4 captures the changes in air flow velocity and temperature at any time. Once an overlimit or abnormal fluctuation occurs, it sends an alarm to the control system through electrical connection; Based on the sensors, multi-parameter monitoring of flow rate, temperature, and fluorescence signals (in case of damage or dust leakage) is carried out to ensure the safe and efficient operation of the whole machine and timely detect faults.

[0060] Further, the fluorescence detection assembly 41 includes a first fluorescence nozzle 411, a second fluorescence nozzle 412, and a fluorescence detector 413. The fluorescence detector 413 is used to detect the intensity of the fluorescence signal and color change. The first fluorescence nozzle 411 is fixedly connected to the dust removal box 11, and the second fluorescence nozzle 412 is fixedly connected to the flower plate 14. The first fluorescence nozzle 411 is used for spraying in the unfiltered area, and the second fluorescence nozzle 412 is used for spraying at the mouth of each filter bag 15. The fluorescence detector 413 is fixedly connected to the flower plate 14.

[0061] By adopting the above technical solution, the fluorescence detection assembly 41 is composed of a first fluorescence nozzle 411, a second fluorescence nozzle 412, and a fluorescence detector 413: The first fluorescence nozzle 411 is fixedly connected to the dust removal box 11 and is used for spraying fluorescent substances in the unfiltered area; the second fluorescence nozzle 412 is fixedly connected to the flower plate 14 and is used for spraying fluorescence on the mouths of the filter bags 15 in a targeted manner; the fluorescence detector 413 is fixedly connected to the flower plate 14 and is used for monitoring the intensity of the fluorescence signal and color change to determine whether the filter bag 15 or the leak prevention mechanism 2 is damaged or there is an abnormal flow rate. In the working process, the first fluorescence nozzle 411 first sprays fluorescence in the unfiltered area as a reference mark, and then the second fluorescence nozzle 412 applies the fluorescence at the mouth of the filter bag 15. The fluorescence detector 413 observes the optical reaction after spraying; by using the appearance characteristics of the fluorescent substances on the surface of the filter bag 15 or the leak area, once the filter bag 15 leaks or the air flow is abnormal, the detector records the abnormal optical signal intensity and color change, and transmits the information to the control system through the electrical connection of the detection mechanism 4. Finally, during the operation of the dust removal device, the damage or abnormal flow rate of the filter bag 15 can be quickly and effectively detected, improving the safety and maintenance efficiency of the equipment.

[0062] The working principle of the present invention:

[0063] Dust-containing gas enters the dust removal box 11 through the dust gas inlet pipe 13. After being filtered by the filter bag 15, the dust settles in the ash hopper 12, and the purified air is discharged from the clean gas outlet pipe 17. This mainly relies on the efficient capture of the filter bag 15 and the heat insulation of the sandwich panel 19. The achieved effect is that high-temperature dust-containing gas can achieve efficient dust removal in an environment with relatively stable temperature, while the dust is concentrated in the ash hopper 12 and discharged by the ash discharge assembly 18. After being filtered by the filter bag 15, the dust settles at the bottom of the ash hopper 12. The shearing motor 185 starts and drives the scraper 183 through the annular rack 184 to clean the dust, and jointly with the shearing worm 182, the dust is chopped or the caking is broken, and then discharged by the star-shaped air lock valve 181. Through mechanical crushing and air lock sealing, the achieved effect is to continuously and evenly discharge dust under the non-stop state, while preventing external air flow from flowing back or leaking dust. Under working conditions such as starting up or cleaning ash, the folding assembly 21 folds or unfolds the filter bag 15 with an isosceles trapezoidal cross-section. The iris assembly 22 assists in sealing or maintenance operations. The anti-condensation assembly 23 timely intervenes in the flue gas temperature through the temperature control pipe 233 (described later). Relying on microstructures such as the folding hinge rod 211, the sliding rod 215 and electromagnetic repulsion, the deformation of the filter bag 15 is realized. At the same time, the surface temperature of the dust removal box 11 is adjusted through the cooling box 231, the heating box 232, etc. The achieved effect is that on the one hand, the dust leakage caused by the loosening or damage of the filter bag 15 is reduced, and on the other hand, the filter bag 15 is prevented from being blocked due to the condensation of humid and hot flue gas when it meets cold. The folding hinge rod 211 and the folding ring 212 form a movable connection structure. The sliding between the sliding rod 215 and the fixed rod 214 enables the folding ring 212 to drive the filter bag 15 to fold or unfold. The electromagnetic block 216 and the magnetic block 217 drive or buffer the folding action in the way of magnetic pole repulsion. The folding elastic member 213 provides elastic return and shock absorption. Relying on magnetic repulsion and elastic support, the automatic or semi-automatic adjustment of the folding process of the filter bag 15 is realized. The achieved effect is that the volume of the filter bag 15 can be reduced and damage can be prevented during ash cleaning or shutdown maintenance, the wind resistance is reduced and good sealing is maintained. After the filter bag 15 is used for a period of time, the electromagnetic pulse valve 31 is opened to release the compressed air in the air storage tank in the form of pulses. After being accelerated by the venturi tube 33, it impacts the surface of the filter bag 15 to peel off the attached dust. The cleaning assembly 34 is responsible for mechanical cooperation operations. The fan 35 is located at the clean gas outlet pipe 17 and is used to adjust or control the outlet air flow rate. The first fluorescent nozzle sprays fluorescent substances in the unfiltered area. The second fluorescent nozzle 412 is aimed at the mouth of the filter bag 15 for directional spraying. The fluorescent detector 413 is fastened to the flower plate 14 to capture the change of the optical signal intensity and color. Through the recognition of the optical characteristics, once the filter bag 15 or the anti-leakage mechanism 2 is damaged or the flow rate is abnormal, the fluorescent detector 413 will sense a significant signal change. The achieved effect is to realize the real-time and accurate monitoring of the inside of the dust removal device, especially the filter bag 15 area, timely discover the damage or blockage faults, and improve the overall safety and operation efficiency of the device.

[0064] It is apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Accordingly, all changes that fall within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A high-temperature and corrosion-resistant bag dust collector for the tail of a kiln, characterized in that: The dust removal device includes a filtering mechanism (1), a leak prevention mechanism (2), a cleaning mechanism (3) and a detection mechanism (4). The leak prevention mechanism (2) is tightly connected to the filtering mechanism (1), the cleaning mechanism (3) is tightly connected to the filtering mechanism (1), and the detection mechanism (4) is tightly connected to the filtering mechanism (1). The leak prevention mechanism (2), the cleaning mechanism (3) and the detection mechanism (4) are all located inside the filtering mechanism (1). The filtering mechanism (1), the leak prevention mechanism (2) and the cleaning mechanism (3) are all electrically connected to the detection mechanism (4). The leak prevention mechanism (2) is used for the bag folding of the dust removal device. The cleaning mechanism (3) is used to clean the residual dust of the filtering mechanism (1). The detection mechanism (4) is used to detect the internal flow rate of the filtering mechanism (1) and the damage condition of the leak prevention mechanism (2); The leak prevention mechanism (2) includes a folding assembly (21), an iris assembly (22) and a dew condensation prevention assembly (23). The folding assembly (21) includes a folding hinge rod (211), a folding ring (212), a folding elastic member (213), a fixing rod (214), a sliding rod (215), an electromagnet block (216) and a magnetic block (217); The detection mechanism (4) includes a fluorescence detection assembly (41). The fluorescence detection assembly (41) includes a first fluorescence nozzle (411), a second fluorescence nozzle (412) and a fluorescence detector (413). The fluorescence detector (413) is used to detect the fluorescence signal intensity and color change.

2. The bag dust collector device with high temperature resistance and corrosion resistance for the tail of the kiln according to claim 1, characterized in that: The filtering mechanism (1) includes a dust removal box (11), a hopper (12), a dust gas inlet pipe (13), a perforated plate (14), filter bags (15), an inspection door (16), a clean gas outlet pipe (17), a dust discharging assembly (18) and a sandwich panel (19). The dust removal box (11) is tightly connected to the hopper (12). The dust gas inlet pipe (13) is communicated with the dust removal box (11). The perforated plate (14) is tightly connected to the dust removal box (11). The filter bags (15) are tightly connected to the perforated plate (14). The inspection door (16) is tightly connected to the dust removal box (11). The clean gas outlet pipe (17) is communicated with the dust removal box (11). The clean gas outlet pipe (17) is located above the dust gas inlet pipe (13). The dust discharging assembly (18) is tightly connected to the hopper (12). The hopper (12) is located at the lower end of the dust removal box (11). The dust discharging assembly (18) is located at the lower end of the hopper (12). The filter bags (15) are made of glass fiber material on the outside and use a PTFE coating. The sandwich panel (19) is made of rock wool or aluminosilicate fiber. The thickness of the sandwich panel (19) is 200 - 250 mm. The sandwich panel (19) is used to ensure that the temperature drop of the dust removal box (11) is controlled within 10°C.

3. The bag-type dust removal device with high temperature resistance and corrosion resistance for the tail of the kiln according to claim 2, wherein: The ash discharging assembly (18) includes a star air lock valve (181), a shearing worm (182), a scraper (183), a ring rack (184) and a shearing motor (185). The star air lock valve (181) is fixedly connected to the ash hopper (12). The shearing motor (185) is fixedly connected to the ash hopper (12). The shearing motor (185) is in transmission connection with the ring rack (184). The scraper (183) is fixedly connected to the ring rack (184). The ring rack (184) is in transmission connection with the shearing worm (182).

4. The bag-type dust removal device with high temperature resistance and corrosion resistance for the tail of the kiln according to claim 3, characterized in that: The folding assembly (21) is fixedly connected to the flower plate (14). The folding assembly (21) is in transmission connection with the filter bag (15). The folding assembly (21) is used for folding the filter bag (15). The folding assembly (21) and the filter bag (15) are both isosceles trapezoids in cross section. The dew prevention assembly (23) is fixedly connected to the dust removal box (11). The iris assembly (22) is fixedly connected to the flower plate (14).

5. The bag-type dust removal device with high temperature resistance and corrosion resistance for the tail of the kiln according to claim 4, characterized in that: The fixed rod (214) is fixedly connected to the flower plate (14). The sliding rod (215) is slidably connected to the fixed rod (214). The electromagnetic block (216) is fixedly connected to the fixed rod (214). The folding elastic member (213) is fixedly connected to the electromagnetic block (216). The folding elastic member (213) is fixedly connected to the magnetic block (217). The magnetic block (217) is fixedly connected to the sliding rod (215). The electromagnetic block (216) and the magnetic block (217) are driven by mutually repulsive magnetic poles. The folding ring (212) is fixedly connected to the filter bag (15). The folding ring (212) is slidably connected to the folding hinge rod (211). The sliding rod (215) is in transmission connection with the folding ring (212).

6. The bag-type dust removal device with high temperature and corrosion resistance for the tail of the kiln according to claim 5, characterized in that: The dew prevention assembly (23) includes a cooling box (231), a heating box (232), a temperature control pipeline (233) and a circulation pump (234). The cooling box (231) is communicated with the temperature control pipeline (233). The heating box (232) is communicated with the circulation pump (234). The circulation pump (234) is communicated with the temperature control pipeline (233). The temperature control pipeline (233) is arranged circumferentially around the dust removal box (11). The temperature control pipeline (233) is spirally arranged around the dust gas inlet pipe (13). The temperature control pipeline (233) is spirally arranged at the lower end of the ash hopper (12).

7. The bag type dust removing device with high temperature resistance and corrosion resistance for the kiln tail according to claim 6, characterized in that: The cleaning mechanism (3) includes an electromagnetic pulse valve (31), a compressed air storage tank (32), a venturi tube (33), a cleaning assembly (34) and a fan (35). The electromagnetic pulse valve (31) is fixedly connected to the dust removal box (11). The compressed air storage tank (32) is communicated with the electromagnetic pulse valve (31). The electromagnetic pulse valve (31) is communicated with the venturi tube (33). The cleaning assembly (34) is fixedly connected to the dust removal box (11). The fan (35) is fixedly connected to the dust removal box (11). The fan (35) is used for controlling the flow rate of the clean gas outlet pipe (17).

8. The bag-type dust removal device with high temperature resistance and corrosion resistance for the kiln tail according to claim 7, characterized in that: The cleaning assembly (34) includes an electric slide rail (341), a lifting hydraulic cylinder (342), a cleaning brush (343) and a cleaning motor (344). The lifting hydraulic cylinder (342) is slidably connected to the electric slide rail (341), the lifting hydraulic cylinder (342) is drivingly connected to the cleaning motor (344), and the cleaning motor (344) is drivingly connected to the cleaning brush (343).

9. The bag-type dust removal device with high temperature resistance and corrosion resistance for the tail of the kiln according to claim 8, characterized in that: The detection mechanism (4) further includes a flow rate sensor (42) and a temperature sensor (43). The fluorescence detection assembly (41) is fixedly connected to the dust removal box (11), the flow rate sensor (42) is fixedly connected to the dust removal box (11), and the temperature sensor (43) is fixedly connected to the dust removal box (11).

10. The bag-type dust removal device with high temperature and corrosion resistance for the tail of the kiln according to claim 9, characterized in that: The first fluorescence nozzle (411) is fixedly connected to the dust removal box (11), the second fluorescence nozzle (412) is fixedly connected to the ceiling plate (14). The first fluorescence nozzle (411) is used for spraying in the unfiltered area, the second fluorescence nozzle (412) is used for spraying at the mouth of each filter bag (15), and the fluorescence detector (413) is fixedly connected to the ceiling plate (14).

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