A smart explosion-proof dust separation device

Abstract

This utility model relates to the field of dust separation and discloses an intelligent explosion-proof dust separation device, including an explosion-proof shell and a dust separation cylinder. A pulse device extending to the top of the dust separation cylinder is installed on the upper right side wall of the explosion-proof shell. A connecting pipe is installed between the pulse device and the dust separation cylinder. A rotating blowpipe extending into the dust separation cylinder is installed below the connecting pipe. Multiple blowheads with the same angle are evenly distributed on the outer wall of the rotating blowpipe. A primary explosion suppressor and a secondary explosion suppressor are sequentially installed on the upper left side wall of the explosion-proof shell. By setting up a dual explosion suppression structure, a comprehensive monitoring system, a high-efficiency purging mechanism, and a sealed ash discharge structure, safe, efficient, and intelligent operation of dust separation is achieved, effectively reducing the risk of explosion, reducing maintenance costs, and solving the pain point that existing devices cannot meet the needs of modern industrial combustible dust treatment.

Description

Technical Field

[0001] This utility model relates to the field of dust separation, specifically an intelligent explosion-proof dust separation device. Background Technology

[0002] In industrial production processes, the emission and treatment of dust-laden gases are crucial for ensuring production safety and environmental quality. Especially in work scenarios where combustible dust is present, the safety, stability, and separation efficiency of dust separation devices are directly related to production safety and the personal safety of operators.

[0003] Currently, existing dust separation devices have significant deficiencies in explosion-proof performance. Most devices only have a single explosion-proof structure, which is insufficient to effectively cope with sudden dust explosions. Furthermore, they lack dual explosion suppression protection, which cannot effectively prevent the spread of the explosion when an initial explosion occurs, easily leading to secondary explosions and posing a great safety hazard. At the same time, the dust filtration and cleaning mechanisms of existing devices are imperfect. Filter elements are easily clogged by dust accumulation, and the blowing mechanism has blind spots, resulting in a continuous decline in separation efficiency.

[0004] In addition, the existing dust separation devices have relatively simple monitoring systems, most of which can only monitor a single indicator. They cannot monitor key parameters such as dust concentration, temperature, and pressure at the air inlet, air outlet, and inside the device in real time. They also cannot accurately determine the degree of blockage of the filter elements, which makes it impossible to detect and deal with abnormal situations in a timely manner, further aggravating the risks. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an intelligent explosion-proof dust separation device.

[0006] The technical solution adopted by this utility model to solve its technical problem is: an intelligent explosion-proof dust separation device, including an explosion-proof shell and a dust separation cylinder. A pulse device extending to the top of the dust separation cylinder is provided on the upper right side wall of the explosion-proof shell. A connecting pipe is provided between the pulse device and the dust separation cylinder. A rotary jet pipe extending into the dust separation cylinder is provided below the connecting pipe. Multiple jet nozzles with the same angle are evenly distributed on the outer wall of the rotary jet pipe. A primary explosion suppressor and a secondary explosion suppressor are sequentially provided on the upper left side wall of the explosion-proof shell.

[0007] The connecting pipeline includes a connecting pipe and a blowpipe frame. The blowpipe frame is fixed to the open end of the dust separation cylinder. The connecting pipe is inserted into the upper part of the blowpipe frame and is connected to the pulse device. The lower part of the blowpipe frame is rotatably connected to a rotating blowpipe.

[0008] Furthermore, a spark extinguisher is provided on the outer wall of the dust inlet end of the explosion-proof enclosure, and a spark detector is provided near the spark extinguisher at the air inlet end. Dust concentration sensors are provided on the explosion-proof enclosure, the air inlet end, and the air outlet end.

[0009] Furthermore, a differential pressure transmitter is installed on the back of the explosion-proof enclosure, and the differential pressure transmitter is connected to the air inlet and air outlet of the explosion-proof enclosure respectively through pipes.

[0010] Furthermore, the pulse device includes a jetting device and a jetting delivery pipe. The jetting device is fixed to the upper right wall of the explosion-proof enclosure by a bracket. The jetting device is provided with multiple jetting delivery pipes, which extend into the explosion-proof enclosure and are connected to a connecting pipe.

[0011] Furthermore, the front surface of the explosion-proof housing is provided with a temperature sensor and a pressure sensor for monitoring dust, arranged side by side.

[0012] The beneficial effects of this utility model are:

[0013] By incorporating a dual explosion suppression structure, a comprehensive monitoring system, an efficient purging mechanism, and a sealed ash discharge structure, the system achieves safe, efficient, and intelligent operation of dust separation, effectively reducing the risk of explosion, minimizing maintenance costs, and addressing the pain point that existing equipment cannot meet the demands of modern industrial combustible dust treatment.

[0014] Through the coordinated action of the primary and secondary explosion suppressors, a dual explosion protection line is formed. When an initial explosion occurs inside the device, the primary explosion suppressor can be activated quickly to suppress the spread of the explosion. If the primary explosion suppressor does not fully function, the secondary explosion suppressor can fill the gap in time to block the development of the explosion to the greatest extent. Compared with the existing single explosion protection structure, the explosion protection reliability of the device is greatly improved.

[0015] By having multiple dust separation cylinders working in parallel, the efficiency of treating dusty gas is improved. At the same time, a rotary blowpipe is used in conjunction with multiple blowheads at the same angle to rotate and blow under high pressure, avoiding blind spots and thoroughly removing dust adhering to the surface of the filter element, preventing filter element blockage. With the help of a differential pressure transmitter, the degree of filter element blockage is monitored in real time, and the blowing parameters are adjusted accordingly to reduce the frequency of manual cleaning and reduce maintenance costs.

[0016] Through the coordinated operation of spark detectors, spark extinguishers, dust concentration sensors, temperature sensors, pressure sensors, and differential pressure transmitters, the system can monitor in real time the sparks at the air inlet, dust concentrations at various locations, internal temperature and pressure, and the degree of clogging of filter elements. When abnormal indicators are detected, alarm signals can be issued in a timely manner, and relevant components can be linked to adjust operating parameters or activate emergency measures, enabling rapid response to abnormal situations, further reducing safety risks, and improving the level of intelligence in the operation of the system. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the present invention.

[0018] Figure 2 yes Figure 1 Detailed frontal cross-sectional view of the connection structure.

[0019] Figure 3 yes Figure 1 Detailed diagram of the back connection structure.

[0020] Figure 4 yes Figure 2 A top-view diagram showing the connection details of the dust separation cylinder, rotary jet pipe, and jet head.

[0021] Figure 5 yes Figure 2 Enlarged detail of the connection structure at point A in the middle.

[0022] Explanation of reference numerals in the attached drawings: 1. Explosion-proof enclosure; 2. Explosion-proof ash discharge valve; 3. Dust separation cylinder; 4. Pulse jetting device; 5. Pulse jetting conveying pipe; 6. Connecting pipe; 7. Pulse jetting pipe frame; 8. Rotary pulse jetting pipe; 9. Pulse jetting head; 10. Spark detector; 11. Spark extinguisher; 12. Temperature sensor; 13. Pressure sensor; 14. Primary explosion suppressor; 15. Secondary explosion suppressor; 16. Differential pressure transmitter. Detailed Implementation

[0023] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0024] See Figures 1-4 This is a schematic diagram of the structure of this utility model, an intelligent explosion-proof dust separation device, including an explosion-proof shell 1 and dust separation cylinders 3. The explosion-proof shell 1 serves as the main protective structure of the entire device, and its main function is to isolate the inside of the device from the external environment, preventing internal dust leakage and the spread of flames and pressure during a combustible dust explosion. Multiple dust separation cylinders 3 are evenly distributed inside the explosion-proof shell 1. The dust separation cylinders 3 are used to filter and separate dust-laden gas. After the dust-laden gas enters the dust separation cylinder 3, the dust particles are separated from the gas by the interception of the internal filter element. The dust adheres to the surface of the filter element, waiting for subsequent cleaning. An explosion-proof ash discharge valve 2 is installed below the conical hopper of the explosion-proof shell 1. The explosion-proof ash discharge valve 2 is mainly used to periodically and stably discharge the dust separated from the dust separation cylinders 3 from the device, which can prevent external flames from entering the device through the ash discharge port and avoid causing a secondary explosion.

[0025] A pulse device extending above the dust separation cylinder 3 is installed on the upper right side wall of the explosion-proof housing 1. This pulse device is a key component for cleaning the filter elements inside the dust separation cylinder 3. It periodically sprays high-pressure gas to blow away dust adhering to the surface of the filter elements, causing the dust to fall into the conical hopper, preventing clogging and ensuring stable dust separation efficiency. A connecting pipe is installed between the pulse device and the dust separation cylinder 3. This connecting pipe serves as a connection between the pulse device and the rotary jet pipe 8, used to transport the high-pressure gas generated by the pulse device to the rotary jet pipe 8. It also serves to fix and support the rotary blowpipe 8. The rotary blowpipe 8 is installed below the connecting pipe and extends into the dust separation cylinder 3. Multiple blowheads 9 with the same angle are evenly distributed on the outer wall of the rotary blowpipe 8. The blowheads 9 are used to spray high-pressure gas at a specific angle to form a high-speed airflow that directly acts on the surface of the filter element. The impact force of the airflow blows off the attached dust. The rotary blowpipe 8 can rotate slowly under the drive of the high-pressure gas in the blowheads 9, so that the blowheads 9 can evenly cover the filter element inside the dust separation cylinder 3 and avoid cleaning dead corners.

[0026] On the upper left side of the explosion-proof enclosure 1, a primary explosion suppressor 14 and a secondary explosion suppressor 15 are sequentially installed. When an initial explosion occurs inside the device, they can be quickly triggered to release dry powder and inert gas, rapidly suppressing the spread of the explosion flame and the rise in pressure, and reducing the damage caused by the explosion. The secondary explosion suppressor 15 serves as a backup explosion-proof line of defense. When the primary explosion suppressor 14 fails to completely suppress the explosion, the secondary explosion suppressor 15 can be activated in time to further block the development of the explosion. The dual explosion suppression design can significantly improve the explosion-proof reliability of the device and minimize the risk of explosion.

[0027] The connecting pipeline includes a connecting pipe 6 and a blow pipe frame 7. The connecting pipe 6 is mainly used to transport high-pressure gas. The blow pipe frame 7 is fixed at the open end of the dust separation cylinder 3 and mainly serves to fix the connecting pipe 6 and support the rotating blow pipe 8. At the same time, it provides a stable support point for the rotation of the rotating blow pipe 8. The connecting pipe 6 is inserted into the upper part of the blow pipe frame 7 and is connected to the pulse device. The lower part of the blow pipe frame 7 is rotatably connected to the rotating blow pipe 8 to ensure that the rotating blow pipe 8 can rotate flexibly and perform uniform blowing.

[0028] A spark extinguisher 11 is installed on the outer wall of the dust inlet of the explosion-proof enclosure 1. The spark extinguisher 11 is mainly used to intercept sparks that may be carried in the dust-laden gas entering the device. Through the internal cooling channel and interception structure, the sparks are extinguished before entering the device, preventing the sparks from igniting the combustible dust inside the device and causing an explosion accident, thus ensuring the safety of the air inlet of the device. A spark detector 10 is installed near the spark extinguisher 11 at the air inlet. The spark detector 10 is used to monitor in real time whether there are sparks in the dust-laden gas at the air inlet. It captures the spark signal through the optical sensing principle. When a spark is detected, it can quickly issue an alarm signal and link the spark detector 10, shut off the air inlet valve and activate the explosion suppression device.

[0029] Dust concentration sensors are installed in the explosion-proof enclosure 1, as well as at the air inlet and outlet. These sensors monitor the dust concentration at the air inlet, air outlet, and inside the explosion-proof enclosure 1 in real time. When the dust concentration exceeds a preset safety threshold, the sensor will issue an alarm signal to alert personnel to handle the situation promptly. Simultaneously, the sensor can be linked to adjust operating parameters, increase the pulse purging frequency, and reduce the air intake to prevent excessive dust concentration from causing an explosion.

[0030] A differential pressure transmitter 16 is installed on the back of the explosion-proof enclosure 1. The differential pressure transmitter 16 is connected to the air inlet and air outlet of the explosion-proof enclosure 1 through pipes. Its main function is to monitor the pressure difference between the air inlet and air outlet in real time. By measuring the pressure difference, the degree of blockage of the filter element inside the dust separation cylinder 3 is determined. When the pressure difference exceeds the preset value, it indicates that the filter element is severely blocked, and it is necessary to increase the pulse purging force or perform manual cleaning, thereby ensuring the normal ventilation and dust separation efficiency of the device and providing data for the maintenance of the device.

[0031] The pulse device includes a jetting device 4 and a jetting delivery pipe 5. The jetting device 4 is the core component that generates high-pressure gas. It is equipped with a gas storage tank, solenoid valve and other structures. It can periodically output high-pressure gas according to a preset program, control the frequency and intensity of the blowing, and meet different dust cleaning needs. The jetting device 4 is fixed to the upper right wall of the explosion-proof housing 1 by a bracket. Multiple jetting delivery pipes 5 are provided on the jetting device 4. The jetting delivery pipes 5 extend into the explosion-proof housing 1 and are connected to the connecting pipes 6. They are used to distribute the high-pressure gas generated by the jetting device 4 to each connecting pipe 6, and then to the rotating jetting pipe 8 to realize the synchronous blowing of multiple dust separation cylinders 3.

[0032] The front surface of the explosion-proof enclosure 1 is equipped with a temperature sensor 12 and a pressure sensor 13 for monitoring dust. The temperature sensor 12 is used to monitor the temperature changes inside the explosion-proof enclosure 1 in real time. When the temperature inside the device rises abnormally due to dust accumulation, friction, or potential explosion hazards, it can promptly issue an alarm signal to remind personnel to take emergency measures such as cooling and shutdown. The pressure sensor 13 is used to monitor the pressure changes inside the explosion-proof enclosure 1 in real time. When an explosion or abnormal pressure fluctuation occurs inside, it can quickly capture the pressure signal and activate the explosion suppression device and pressure relief device to prevent the explosion-proof enclosure 1 from being damaged due to excessive pressure.

[0033] A vibration motor is installed on the conical ash discharge hopper wall below the explosion-proof housing 1. The vibration generated by the vibration motor during operation can be transmitted to the conical ash discharge hopper wall to prevent dust from adhering to and caking on the hopper wall, ensuring that the dust can smoothly slide down to the explosion-proof ash discharge valve 2, avoiding dust accumulation and blockage of the ash discharge channel, and ensuring the smooth progress of ash discharge work.

[0034] When using this utility model:

[0035] Dust-laden gas first enters through the air inlet of the device and passes through the spark detector 10 and the spark extinguisher 11. The spark detector 10 monitors in real time whether the gas carries sparks, and the spark extinguisher 11 extinguishes the detected sparks in time to prevent the sparks from igniting the combustible dust inside and causing safety hazards. At the same time, the dust concentration sensor monitors the dust concentration at the air inlet in real time to ensure the concentration of dust-laden gas entering the device. The dust-laden gas enters the explosion-proof housing 1 and, under the action of multiple dust separation cylinders 3, achieves gas-solid separation through the interception of the filter elements inside the dust separation cylinders 3. Dust particles are intercepted and adhere to the surface of the filter elements, and the filtered clean gas is discharged through the air outlet.

[0036] When the dust separation cylinder 3 is blocked, the pulse device will periodically generate high-pressure gas according to the preset program. The high-pressure gas is delivered to the rotary jet pipe 8 that extends into the dust separation cylinder 3 through the connecting pipeline. The jet nozzle 9 on its outer wall sprays out the high-pressure gas. The rotary jet pipe 8 rotates slowly under the drive of the high-pressure gas. The airflow evenly sweeps the surface of the filter element, causing the attached dust to fall into the conical ash discharge hopper below the explosion-proof housing 1.

[0037] The vibrating motor on the wall of the conical ash discharge hopper continuously vibrates to prevent dust from adhering to and caking on the wall, ensuring that the dust slides smoothly to the explosion-proof ash discharge valve 2. While stably discharging dust, the explosion-proof ash discharge valve 2 can effectively isolate external flames and avoid the risk of secondary explosion.

[0038] During operation, temperature sensor 12, pressure sensor 13 and dust concentration sensor work together to monitor the temperature and pressure inside the explosion-proof enclosure 1, as well as the dust concentration at the air inlet, air outlet and inside the explosion-proof enclosure 1 in real time. At the same time, differential pressure transmitter 16 determines the degree of blockage of the filter element inside the dust separation cylinder 3 in real time. When any of the monitoring indicators are abnormal, an alarm signal will be issued in time and relevant mechanisms will be linked to adjust the operating parameters or activate emergency measures.

Claims

1. An intelligent explosion-proof dust separation device, comprising an explosion-proof shell (1) and a dust separation cylinder (3), characterized in that, A pulse device extending to the dust separation cylinder (3) is provided on the upper right side wall of the explosion-proof housing (1). A connecting pipe is provided between the pulse device and the dust separation cylinder (3). A rotary jet pipe (8) extending into the dust separation cylinder (3) is provided below the connecting pipe. Multiple jet nozzles (9) with the same angle are arranged at equal intervals on the outer wall of the rotary jet pipe (8). A primary explosion suppressor (14) and a secondary explosion suppressor (15) are arranged sequentially on the upper left side wall of the explosion-proof housing (1). The connecting pipeline includes a connecting pipe (6) and a blow pipe frame (7). The blow pipe frame (7) is fixed at the open end of the dust separation cylinder (3). The connecting pipe (6) is inserted above the blow pipe frame (7). The connecting pipe (6) is connected to the pulse device. The blow pipe frame (7) is rotatably connected to the rotating blow pipe (8) below.

2. The intelligent explosion-proof dust separating device according to claim 1, characterized in that: A spark extinguisher (11) is provided on the outer wall of the dust inlet end of the explosion-proof housing (1), and a spark detector (10) is provided near the spark extinguisher (11) at the air inlet end. Dust concentration sensors are provided on the explosion-proof housing (1), the air inlet end, and the air outlet end.

3. The intelligent explosion-proof dust separating device according to claim 1, characterized in that: A differential pressure transmitter (16) is provided on the back of the explosion-proof enclosure (1). The differential pressure transmitter (16) is connected to the air inlet and air outlet of the explosion-proof enclosure (1) through pipes.

4. The intelligent explosion-proof dust separation device according to claim 1, characterized in that: The pulse device includes a jetting device (4) and a jetting delivery pipe (5). The jetting device (4) is fixed to the upper right side of the explosion-proof housing (1) by a bracket. The jetting device (4) is provided with multiple jetting delivery pipes (5). The jetting delivery pipes (5) extend into the explosion-proof housing (1) and are connected to the connecting pipe (6).

5. The intelligent explosion-proof dust separation device according to claim 1, characterized in that: The front surface of the explosion-proof housing (1) is provided with a temperature sensor (12) and a pressure sensor (13) for monitoring dust.

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