Cloth bag type tail gas treatment device

Abstract

The invention belongs to the technical field of waste gas treatment, provides a hydroelectric dual-power and intelligent-control efficient tail gas treatment device with a rain sheltering function, and particularly relates to a cloth bag type tail gas treatment device. The device mainly comprises a rain sheltering cover mechanism, a hydroelectric dual-power fan mechanism, a fan cover assembly and a dust removal box mechanism. The rain sheltering cover can prevent the device from being eroded by rainwater, hydroelectric dual power is combined with rainwater potential energy and a standby motor, the energy utilization rate is improved, a cloth bag in the dust removal box is designed in a modularized mode, maintenance is convenient, and the intelligent control system is composed of a sensor, a controller and a communication module. The device is adjusted to operate according to a preset strategy, such as fan rotating speed and power adjustment and cloth bag module increase and decrease, and the device is good in rainproof performance, efficient in power, high in intelligent degree, convenient to maintain, capable of effectively treating tail gas and ensuring up-to-standard emission, and suitable for tail gas treatment in the fields of industry, transportation and the like.

Description

Technical Field

[0001] The present invention belongs to the technical field of waste gas treatment, and provides an efficient tail gas treatment device with a rain protection function, dual power of water and electricity, and intelligent control, and particularly relates to a bag type tail gas treatment device. Background Art

[0002] In industrial production scenarios, such as the industries of thermal power generation, iron and steel smelting, and chemical manufacturing, the tail gas generated by burning fossil fuels contains a large amount of pollutants such as particulate matter, sulfur dioxide, and nitrogen oxides. In terms of transportation, the tail gas emissions of vehicles, ships, airplanes and other means of transportation cannot be underestimated. These tail gases have caused a serious impact on the balance of the ecological system. More worryingly, these harmful substances pose a serious threat to human health, and the incidence of respiratory diseases and cardiovascular diseases has increased significantly due to long-term exposure to polluted air.

[0003] At present, the existing tail gas treatment devices on the market expose many drawbacks when dealing with these complex and severe tail gas treatment problems. Many devices lack effective rain protection designs and are extremely vulnerable to damage under harsh weather conditions such as heavy rain, snow, etc. This not only greatly shortens the service life of the device, but also causes the tail gas treatment effect to be greatly reduced and cannot continuously and stably play its role.

[0004] From the perspective of energy utilization, a considerable part of the tail gas treatment devices have a single power form and only rely on traditional electric drive, with low energy utilization efficiency, which not only increases the operating costs of enterprises and society.

[0005] In terms of intelligent control, the existing devices have obvious deficiencies. They cannot perceive the dynamic changes of tail gas components and emission concentrations in real time and accurately, and cannot flexibly adjust the operating parameters according to the actual situation of the tail gas, making it difficult to improve the tail gas treatment efficiency and difficult to meet the increasingly strict environmental protection standards.

[0006] Therefore, it is of great practical significance to innovate a tail gas treatment device with a reasonable structure, high power and intelligent control function. Summary of the Invention

[0007] The present invention proposes a bag type tail gas treatment device, and the purpose of the present invention is to provide an efficient tail gas treatment device with a rain protection function, dual power of water and electricity, and intelligent control.

[0008] The technical solution of the present invention is as follows: a bag type tail gas treatment device, including a rain protection cover mechanism, a water and electricity dual power fan mechanism, a fan cover assembly and a dust removal box mechanism; The rain protection cover mechanism includes a rain protection cover main body, a rain protection cover water collecting tank and a rain protection cover reinforcing rib; The rain shield body is arc-shaped. The rain shield water collecting trough is arranged at the bottom edge of the rain shield body. The rain shield reinforcing ribs are distributed inside the rain shield body. The rain shield body is fixed to the top of the fan cover assembly by welding or bolt connection; The water-electricity dual-power fan mechanism includes a fan circular shaft, an impeller frame, a water turbine blade and fan blades; The fan circular shaft penetrates through the center of the impeller frame and is fixedly connected. The water turbine blade and the fan blades are both installed on the impeller frame. The fan circular shaft is supported inside the rain shield body by a fan shaft bracket. The fan shaft bracket is fixedly connected to the rain shield body. The two fan blades are both arranged and installed in the same direction. The rain shield water collecting trough is used to drain the collected rainwater onto the water turbine blade; The fan cover assembly includes a fan cover body, a fan shaft bracket and a fan mounting bracket; The fan shaft bracket is fixed inside the fan cover body. The fan mounting bracket is arranged outside the fan cover body. The fan cover assembly is fixedly connected to the dust removal box mechanism through the fan mounting bracket; The dust removal box mechanism includes a frame structure, filter bags, card slots, a dust removal box body and an intelligent control system; The frame structure is arranged inside the dust removal box body and is fixedly connected to the dust removal box body. The filter bags are arranged in a modular and reconfigurable form. Each module is formed by fixing 10 filter bags through the frame structure into a regular shape. The card slots are arranged on the frame structure. The filter bag module is adaptively connected to the card slots; Among them, the intelligent control system is composed of a sensor, a controller and a communication module. The sensor includes an ultrasonic flue gas flow sensor installed in the intake pipe of the dust removal box mechanism, a laser scattering particulate matter concentration sensor installed at the intake and outlet of the dust removal box mechanism, and pressure sensors installed at different positions inside the dust removal box mechanism. The controller adopts a high-performance industrial programmable logic controller and is electrically connected to the sensor and the communication module.

[0009] As a preferred solution of the present invention, further, the ultrasonic flue gas flow sensor is used to accurately measure the flue gas flow entering the dust removal box mechanism in real time, and the measurement accuracy is ±1%. By obtaining this flow data, it provides a basic basis for the subsequent adjustment of the device operation state by the intelligent control system, and judges whether it is necessary to adjust the number of filter bag modules according to the flue gas flow.

[0010] As a preferred solution of the present invention, further, the laser scattering particulate matter concentration sensor is used to monitor the particulate matter concentration in the intake and outlet in real time. The detection range is 0 - 1000 mg / m³, and the accuracy is ±5%. By comparing the particulate matter concentration at the intake and outlet, it can intuitively reflect the filtering effect of the filter bags in the dust removal box mechanism, so that the intelligent control system can judge whether it is necessary to maintain, replace the filter bags or adjust the device operation parameters.

[0011] As a preferred embodiment of the present invention, further, the pressure sensor is used to monitor the internal pressure change with an accuracy of ±0.5%. The internal pressure change reflects the smoothness of the air flow inside the device. The clogging of the cloth bag will cause abnormal pressure. The information monitored by the pressure sensor helps the intelligent control system to discover problems and thus adjust the operating state of the fan.

[0012] As a preferred embodiment of the present invention, further, the hydro-electric dual-power fan mechanism is equipped with a standby motor for driving the fan blades in case of no rain or less rain.

[0013] As a preferred embodiment of the present invention, further, the controller is electrically connected to the hydro-electric dual-power fan mechanism and is used to receive the flue gas flow rate, particulate matter concentration, and pressure data collected by the sensors. After analysis and judgment based on the preset control strategy, it sends instructions to relevant devices through the communication module and can adjust the rotational speed and power operating parameters of the hydro-electric dual-power fan mechanism according to the data.

[0014] The beneficial effects of the present invention are as follows: The rain shield mechanism of the present invention is exquisitely designed. The arc-shaped rain shield main body cooperates with the water collecting trough to quickly guide and collect rainwater, avoiding the direct scouring of rainwater on the core components of the device. The internal reinforcing ribs greatly enhance the structural strength, enabling the device to still operate stably under harsh weather conditions such as heavy rain and strong winds, effectively reducing the risk of equipment failure caused by weather factors, and ensuring the continuity of the tail gas treatment work, which is crucial for waste incineration field where waste gas treatment equipment needs to operate stably for a long time.

[0015] The hydro-electric dual-power fan mechanism of the present invention innovatively combines the potential energy of rainwater and the drive of the standby motor. When there is abundant rainwater, it makes full use of the potential energy of natural rainwater to drive the water turbine blades and drive the fan to operate, reducing the dependence on traditional electric energy and significantly improving the energy utilization efficiency. In case of no rain or less rain, the standby motor is started in time to ensure the continuous and stable operation of the device. This dual-power mode effectively reduces the operating cost and meets the development requirements of energy-saving and environment-friendly waste gas treatment equipment in the waste incineration field.

[0016] The intelligent control system of the present invention uses an ultrasonic flue gas flow sensor, a laser scattering particulate matter concentration sensor, and a pressure sensor to accurately monitor key parameters such as the tail gas flow rate, particulate matter concentration, and internal pressure in real time. Based on these data, the system automatically and flexibly adjusts the number of cloth bag modules and the operating parameters of the fan, realizing the intelligentization and automation of tail gas treatment. Whether it is the large fluctuation of tail gas emissions in industrial production or the dynamic change of tail gas emissions from transportation tools, this device can efficiently respond to ensure that the tail gas is always up to standard, fully meeting the strict requirements for tail gas treatment effect in waste incineration.

[0017] The dust removal box mechanism of the present invention adopts a modular and reconfigurable design of cloth bags. Each module is fixedly connected by 10 cloth bags through a frame structure and is precisely adapted to the card slots on the frame. This design makes the installation, disassembly, and replacement of the cloth bags extremely convenient, greatly shortening the maintenance time and reducing the maintenance cost. Once the cloth bags are blocked or damaged, the corresponding modules can be quickly replaced, reducing the equipment downtime and improving the overall maintainability of the device, ensuring the efficient and continuous progress of the tail gas treatment work. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0019] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the internal structure of the dust removal box mechanism of the present invention; Figure 3 is a schematic side view structure diagram of the overall structure of the present invention; Figure 4 is a schematic side view structure diagram of the fan hood assembly of the present invention; Figure 5 is a schematic front view structure diagram of the fan hood assembly of the present invention; Figure 6 is a schematic side view structure diagram of the water and electricity dual-power fan mechanism of the present invention; Figure 7 is a schematic front view structure diagram of the water and electricity dual-power fan mechanism of the present invention; Figure 8 is a schematic side view structure diagram of the rain shelter mechanism of the present invention; Figure 9 is a schematic front view structure diagram of the rain shelter mechanism of the present invention; Figure 10 is a schematic diagram of the frame structure of the intelligent control system of the present invention.

[0020] In the figure: 1. Rain shelter mechanism; 101. Rain shelter main body; 102. Rain shelter water collection tank; 103. Rain shelter reinforcing rib; 2. Water and electricity dual-power fan mechanism; 201. Fan circular shaft; 202. Impeller frame; 203. Turbine blade; 204. Fan blade; 3. Fan hood assembly; 301. Fan hood main body; 302. Fan shaft support; 303. Fan installation support; 4. Dust removal box mechanism; 401. Frame structure; 402. Filter bag; 403. Card slot; 404. Dust removal box body; 405. Intelligent control system; 4051. Sensor; 40511. Ultrasonic flue gas flow sensor; 40512. Laser scattering particulate matter concentration sensor; 40513. Pressure sensor; 4052. Controller; 4053. Communication module. Specific implementation manner

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts fall within the scope of the present invention.

[0022] Embodiment 1 As Figures 1 to 10As shown in the figure, this embodiment proposes a bag - type tail gas treatment device, which includes a rain - shelter mechanism 1, a hydro - electric dual - power fan mechanism 2, a fan cover assembly 3 and a dust removal box mechanism 4. The rain - shelter mechanism 1 includes a rain - shelter main body 101, a rain - shelter water collecting trough 102 and rain - shelter reinforcing ribs 103. The rain - shelter main body 101 is arc - shaped. The rain - shelter water collecting trough 102 is arranged at the bottom edge of the rain - shelter main body 101. The rain - shelter reinforcing ribs 103 are distributed inside the rain - shelter main body 101. The rain - shelter main body 101 is fixed to the top of the fan cover assembly 3 by welding or bolt connection. The hydro - electric dual - power fan mechanism 2 includes a fan circular shaft 201, an impeller frame 202, a water turbine blade 203 and fan blades 204. The fan circular shaft 201 passes through the center of the impeller frame 202 and is fixedly connected. The water turbine blade 203 and the fan blades 204 are both installed on the impeller frame 202. The fan circular shaft 201 is supported inside the fan cover main body 301 by a fan shaft bracket 302. The fan shaft bracket 302 is fixedly connected to the fan cover main body 301. The two fan blades 204 are both arranged and installed in the same direction. The rain - shelter water collecting trough is used to drain the collected rainwater onto the water turbine blade 203. The fan cover assembly 3 includes a fan cover main body 301, a fan shaft bracket 302 and a fan installation bracket 303. The fan shaft bracket 302 is installed on the fan cover main body 301. The fan installation bracket 303 is installed inside the fan cover main body 301. The fan cover assembly 3 is installed outside the hydro - electric dual - power fan mechanism 2 through the fan installation bracket 303 and the fan shaft bracket 302. The dust removal box mechanism 4 includes a frame structure 401, filter bags 402, card slots 403, a dust removal box body 404 and an intelligent control system 405. The frame structure 401 is arranged inside the dust removal box body 404 and is fixedly connected to the dust removal box body 404. The filter bags 402 are arranged in a modular and reconfigurable form. Each module is formed by fixing a strip of filter bags 402 through the frame structure 401 into a regular shape. The card slots 403 are arranged on the frame structure 401. The filter bag 402 modules are adaptively connected to the card slots 403; Among them, the intelligent control system 405 is composed of a sensor 4051, a controller 4052 and a communication module 4053. The sensor 4051 includes an ultrasonic flue gas flow sensor 40511 installed in the intake pipe of the dust removal box mechanism 4, a laser scattering particulate matter concentration sensor 40512 installed at the intake and outlet of the dust removal box mechanism 4, and a pressure sensor 40513 installed at different positions inside the dust removal box mechanism 4. The controller 4052 uses a high - performance industrial - grade programmable logic controller 4052 and is electrically connected to the sensor 4051 and the communication module 4053.

[0023] In this embodiment, the rain shield main body 101 is arc-shaped. Its main function is to block rainwater and prevent it from directly hitting the hydro-electric dual-power fan mechanism 2 and the fan cover assembly 3 below, providing protection for these components and ensuring the normal operation of the device in rainy weather. At the same time, its arc design helps to guide the rainwater to flow towards the rain shield water collecting trough 102. The rain shield water collecting trough 102 is arranged at the bottom edge of the rain shield main body 101, used to collect the rainwater flowing down from the surface of the rain shield main body 101, and drain the collected rainwater onto the water turbine blade 203, providing water source for the hydro-electric dual-power fan mechanism 2 to utilize the potential energy of rainwater. The rain shield reinforcing ribs 103 are distributed inside the rain shield main body 101 to enhance the structural strength of the rain shield main body 101, enabling it to withstand the impact of rainwater and the external force of wind pressure, and ensuring the stability and reliability of the rain shield main body 101 during long-term use; The fan circular shaft 201 passes through the center of the impeller frame 202 and is fixedly connected, which is a key component for power transmission. On the one hand, when the water turbine blade 203 rotates under the impact of rainwater, it drives the fan blade 204 to rotate; on the other hand, when the standby motor starts, it serves as the transmission shaft for the motor power output, driving the impeller frame 202 and the fan blade 204 to operate, realizing the inhalation of tail gas. The impeller frame 202 is used to install the water turbine blade 203 and the fan blade 204, providing support and fixation for them, ensuring the relative position stability of the water turbine blade 203 and the fan blade 204 during rotation, and enabling the entire mechanism to work properly. The water turbine blade 203 receives the rainwater drained from the rain shield water collecting trough 102 and rotates using the potential energy of the rainwater, thereby driving the fan circular shaft 201 and the fan blade 204 to rotate, converting the potential energy of the rainwater into mechanical energy, providing partial power for the tail gas treatment device, and realizing energy-saving operation. The fan blade 204 rotates under the drive of the fan circular shaft 201, generating suction to inhale the tail gas into the dust removal box mechanism 4 for subsequent filtration treatment; The fan cover main body 301 houses and protects the hydro-electric dual-power fan mechanism 2, preventing external sundries from entering the mechanism and affecting its normal operation. At the same time, it plays a certain protective role for the fan circular shaft 201 and the impeller frame 202 components, avoiding damage caused by external impact. The fan shaft bracket 302 is fixed inside the fan cover main body 301, used to support the fan circular shaft 201, ensuring the stability of the fan circular shaft 201 during rotation, enabling it to accurately transmit power. The fan installation bracket 303 is provided outside the fan cover main body 301, used to fixedly connect the fan cover assembly 3 and the dust removal box mechanism 4, making the entire device form a stable overall structure; The frame structure 401 is arranged inside the dust box body 404 and is fixedly connected to the dust box body 404. The frame structure 401 provides installation and support for the cloth bags 402, ensuring that the cloth bags 402 are arranged regularly in the dust box so that the exhaust gas can be evenly filtered through the cloth bags 402. The cloth bags 402 are arranged in a modular and reconfigurable form and are the core components of the exhaust gas filtration. Each module is composed of strips of cloth bags 402, which are fixedly connected into a regular shape by the frame structure 401, and can effectively intercept particulate matter in the exhaust gas. , to achieve the purification of exhaust gas, the card slot 403 is arranged on the frame structure 401, and is adapted to be connected with the bag 402 module, so as to facilitate the installation and removal of the bag 402 module, and to facilitate the maintenance and replacement of the bag 402, thereby improving the maintainability of the device. The dust removal box body 404 serves as an installation carrier for the frame structure 401 and the bag 402 components, and at the same time provides a relatively closed space for the filtration treatment of exhaust gas, so as to ensure that the exhaust gas flows along a predetermined path in the box and is discharged after being filtered by the bag 402; It should also be stated that a water guide pipe is arranged at the bottom of the rain shelter water collection tank 102, one end of the water guide pipe is connected to the rain shelter water collection tank 102, and the other end is arranged toward the turbine blades 203 of the hydroelectric dual-power fan mechanism 2. When rainwater is collected to the rain shelter water collection tank 102 through the rain shelter main body 101, it is directed through the water guide pipe to make the rainwater impact the surface of the turbine blades 203. The shape design of the turbine blades 203 can enhance the receiving effect of the impact force of the water flow, prompting the turbine blades 203 to generate rotational power after being impacted by the water flow, thereby driving the impeller frame 202 and the fan shaft 201 to rotate. Through this structural design, it is ensured that the rainwater collected in the rain shelter water collection tank 102 can be accurately discharged to the turbine blades 203, providing a clear power transmission path for the hydroelectric dual-power fan mechanism 2 to utilize the potential energy of rainwater.

[0024] The intelligent control system 405 monitors the exhaust gas flow, particulate matter concentration, and internal pressure parameters in real time through the sensor 4051. The controller 4052 analyzes and judges the data based on the preset control strategy, and then sends instructions to related equipment through the communication module 4053 to realize intelligent regulation of the operating status of the device, such as adjusting the number of bag 402 modules and the fan operating parameters according to the exhaust gas conditions to ensure efficient and stable operation of the device and that the exhaust gas emissions meet the standards.

[0025] Example 2 like Figures 1 to 10 As shown, the ultrasonic flue gas flow sensor 40511 is used to accurately measure the flue gas flow entering the dust removal box mechanism 4 in real time, with a measurement accuracy of ±1%. By obtaining the flow data, it provides a basic basis for the subsequent adjustment of the operating status of the device by the intelligent control system 405, and determines whether the number of bag modules 402 needs to be adjusted according to the flue gas flow.

[0026] The laser scattering particulate matter concentration sensor 40512 is used to monitor the particulate matter concentration in the intake and exhaust gases in real time. The detection range is 0 - 1000 mg / m³, and the accuracy is ±5%. By comparing the particulate matter concentrations at the intake and exhaust ports, it can intuitively reflect the filtering effect of the filter bag 402 in the dust removal box mechanism 4, so that the intelligent control system 405 can determine whether it is necessary to maintain, replace the filter bag 402 or adjust the device operation parameters.

[0027] The pressure sensor 40513 is used to monitor the internal pressure change, and the accuracy is ±0.5%. The internal pressure change reflects the smoothness of the internal air flow of the device. The blockage of the filter bag 402 will cause abnormal pressure. The information monitored by the pressure sensor 40513 helps the intelligent control system 405 to discover problems, so as to adjust the operation state of the fan.

[0028] The hydro - electric dual - power fan mechanism 2 is equipped with a standby motor, which is used to drive the fan blade 204 when there is no rain or less rain.

[0029] The controller 4052 and the hydro - electric dual - power fan mechanism 2 are electrically connected. It is used to receive the flue gas flow rate, particulate matter concentration, and pressure data collected by the sensor 4051. After analyzing and judging based on the preset control strategy, it sends instructions to relevant devices through the communication module 4053, and can adjust the rotation speed and power operation parameters of the hydro - electric dual - power fan mechanism 2 according to the data; In this embodiment, the ultrasonic flue gas flow sensor 40511, the laser scattering particulate matter concentration sensor 40512, and the pressure sensor 40513 are connected to the input port of the controller 4052 through signal lines, and transmit the collected flue gas flow rate, particulate matter concentration, and pressure data to the controller 4052 in real time; The controller 4052 is connected to the communication module 4053. The controller 4052 is connected to the communication module 4053 through an internal interface. The communication module 4053 can be an industrial Ethernet module, an RS - 485 module, which is used to send the instructions of the controller 4052 to relevant devices; The controller 4052 is connected to the hydro - electric dual - power fan mechanism 2. The output port of the controller 4052 is connected to the control unit of the hydro - electric dual - power fan mechanism 2 through a signal line. The control unit can be a motor driver, an inverter, which is used to receive the instructions of the controller 4052 and adjust the rotation speed and power of the fan; In this embodiment, it is assumed that the tail gas treatment device of a certain factory adopts the technical solution of the present invention. The following are specific examples of the controller 4052 adjusting the hydro - electric dual - power fan mechanism 2 under different working conditions.

[0030] Working condition 1: Normal operation Data acquisition: Under normal operating conditions, the ultrasonic flue gas flow sensor 40511 measures the flue gas flow rate to be 5000 m³ / h. The laser scattering particulate matter concentration sensor 40512 measures the particulate matter concentration at the inlet to be 200 mg / m³, and the particulate matter concentration at the outlet to be 20 mg / m³. The pressure sensor 40513 measures the internal pressure of the dust removal box to be 1000 Pa; Analysis and judgment: The controller 4052, based on the preset control strategy, determines that the current flue gas flow rate and particulate matter concentration are within the normal range, and the internal pressure of the dust removal box is also normal. At this time, the rotation speed and power of the fan do not need to be adjusted, and the current operating state is maintained; Instruction execution: The controller 4052 does not send an adjustment instruction to the control unit of the hydroelectric dual-power fan mechanism 2, and the fan continues to operate at the current rotation speed and power.

[0031] Operating condition 2: Increase in flue gas flow rate Data acquisition: Due to an increase in the factory production load, the ultrasonic flue gas flow sensor 40511 measures that the flue gas flow rate suddenly increases to 8000 m³ / h. The laser scattering particulate matter concentration sensor 40512 measures that the particulate matter concentration at the inlet remains 200 mg / m³, and the particulate matter concentration at the outlet slightly increases to 30 mg / m³. The pressure sensor 40513 measures that the internal pressure of the dust removal box slightly increases to 1200 Pa; Analysis and judgment: The controller 4052, based on the preset control strategy, determines that the flue gas flow rate has increased, and it is necessary to increase the rotation speed and power of the fan to ensure sufficient suction to draw the tail gas into the dust removal box for treatment. At the same time, since the particulate matter concentration at the outlet has slightly increased, further observation is required. If it continues to increase, the number of bag 402 modules needs to be increased; Instruction execution: The controller 4052 sends an instruction to the control unit of the hydroelectric dual-power fan mechanism 2 through the communication module 4053 to increase the rotation speed of the fan by 20% and increase the power accordingly. After receiving the instruction, the control unit adjusts the drive parameters of the motor to make the rotation speed and power of the fan reach the set value.

[0032] Operating condition 3: Blockage of bag 402 Data acquisition: After running for a period of time, the pressure sensor 40513 measures that the internal pressure of the dust removal box continuously increases to 1500 Pa. The laser scattering particulate matter concentration sensor 40512 measures that the particulate matter concentration at the outlet also increases to 50 mg / m³, while the ultrasonic flue gas flow sensor 40511 measures that the flue gas flow rate slightly decreases to 7500 m³ / h; Analysis and judgment: The controller 4052, based on the preset control strategy, determines that the bag 402 is blocked, resulting in an increase in the internal pressure of the dust removal box, a decrease in the flue gas flow rate, and an increase in the particulate matter concentration at the outlet. At this time, it is necessary to reduce the rotation speed and power of the fan to avoid further damage to the bag 402; Instruction execution: The controller 4052 sends an instruction to the control unit of the hydroelectric double-power fan mechanism 2 through the communication module 4053 to reduce the fan speed by 30%, and the power is reduced accordingly. At the same time, the controller 4052 sends an instruction to replace the new cloth bag 402 module. After the replacement is completed and the pressure returns to normal and the particulate matter concentration decreases, the fan speed and power are restored to the normal operating state.

[0033] Workflow: S1. In the case of rain, the rainwater collected by the rain shield water collecting tank 102 is discharged onto the water turbine blade 203, impacting the water turbine blade 203 to drive the impeller frame 202 and the fan shaft 201 to rotate, causing the fan blade 204 to rotate and inhaling the tail gas.

[0034] S2. The intelligent control system 405 starts to work, and each sensor 4051 collects data such as flue gas flow rate, particulate matter concentration, and pressure in real time and transmits the data to the controller 4052.

[0035] S3. The controller 4052 analyzes and judges the data according to the preset control strategy. If the flue gas flow rate increases, the controller 4052 judges that it is necessary to increase the filtration area and install a spare cloth bag 402 module; if the particulate matter concentration at the outlet is detected to be too high and the filtering effect of the cloth bag 402 is judged to be poor, the controller 4052 can issue an instruction to prompt the replacement of the cloth bag 402; if the pressure sensor 40513 monitors abnormal internal pressure, the controller 4052 adjusts the fan operating state and reduces the fan speed to avoid device damage.

[0036] S4. In the case of no rain or less rain, the standby motor starts to drive the fan blade 204 to rotate to maintain the normal operation of the device.

Claims

1. A bag - type tail gas treatment device, characterized in that, It includes a rain shelter mechanism, a hydro-electric dual-power fan mechanism, a fan cover assembly and a dust removal box mechanism; The rain shelter mechanism includes a rain shelter main body, a rain shelter water collection trough and rain shelter reinforcing ribs; The rain shelter main body is arc-shaped. The rain shelter water collection trough is arranged at the bottom edge of the rain shelter main body. The rain shelter reinforcing ribs are distributed inside the rain shelter main body. The rain shelter main body is fixed to the top of the fan cover assembly by welding or bolt connection; The hydro-electric dual-power fan mechanism includes a fan circular shaft, an impeller frame, a water turbine blade and fan blades; The fan circular shaft passes through the center of the impeller frame and is fixedly connected. The water turbine blade and the fan blades are both installed on the impeller frame. The fan circular shaft is supported inside the rain shelter main body by a fan shaft support. The fan shaft support is fixedly connected to the rain shelter main body. The two fan blades are both arranged and installed in the same direction. The water collection trough of the water shelter is used to drain the collected rainwater onto the water turbine blade; The fan cover assembly includes a fan cover main body, a fan shaft support and a fan installation support; The fan shaft support is fixed inside the fan cover main body. The fan installation support is arranged outside the fan cover main body. The fan cover assembly is fixedly connected to the dust removal box mechanism through the fan installation support; The dust removal box mechanism includes a frame structure, cloth bags, card slots, a dust removal box body and an intelligent control system; The frame structure is arranged inside the dust removal box body and is fixedly connected to the dust removal box body. The cloth bags are arranged in a modular and reconfigurable form. Each module consists of 10 cloth bags fixedly connected into a regular shape through the frame structure. The card slots are arranged on the frame structure. The cloth bag module is adaptively connected to the card slots; Among them, the intelligent control system is composed of a sensor, a controller and a communication module. The sensor includes an ultrasonic flue gas flow sensor installed in the intake pipe of the dust removal box mechanism, a laser scattering particulate matter concentration sensor installed at the intake and outlet of the dust removal box mechanism, and pressure sensors installed at different positions inside the dust removal box mechanism. The controller adopts a high-performance industrial programmable logic controller and is electrically connected to the sensor and the communication module.

2. The bag - type tail gas treatment device according to claim 1, characterized in that, The ultrasonic flue gas flow sensor is used to accurately measure the flue gas flow entering the dust removal box mechanism in real time. The measurement accuracy is ±1%. By obtaining this flow data, it provides a basic basis for the intelligent control system to adjust the operation state of the device subsequently, and judges whether it is necessary to adjust the number of cloth bag modules according to the flue gas flow.

3. The bag - type tail gas treatment device according to claim 2, characterized in that, The laser scattering particulate matter concentration sensor is used to monitor the particulate matter concentration in the intake and outlet in real time. The detection range is 0 - 1000 mg / m³, and the accuracy is ±5%. By comparing the particulate matter concentration at the intake and outlet, it can intuitively reflect the filtering effect of the cloth bags in the dust removal box mechanism, so that the intelligent control system can judge whether it is necessary to maintain, replace the cloth bags or adjust the device operation parameters.

4. The bag - type tail gas treatment device according to claim 3, characterized in that, The pressure sensor is used to monitor the internal pressure change. The accuracy is ±0.5%. The internal pressure change reflects the smoothness of the internal air flow of the device. The blockage of the cloth bags will cause abnormal pressure. The information monitored by the pressure sensor helps the intelligent control system to discover problems, so as to adjust the operation state of the fan.

5. The bag - type tail gas treatment device according to claim 4, characterized in that, The hydro-electric dual-power fan mechanism is equipped with a standby motor for driving the fan blades in the case of no rain or less rain.

6. The bag - type tail gas treatment device according to claim 5, characterized in that, The controller is electrically connected to the hydro-electric dual-power fan mechanism, and is used to receive the flue gas flow rate, particulate matter concentration, and pressure data collected by the sensor. After analyzing and judging based on the preset control strategy, it sends instructions to relevant devices through the communication module, and can adjust the rotational speed and power operation parameters of the hydro-electric dual-power fan mechanism according to the data.

Images