Negative pressure suction adaptive dust removal system

Abstract

The application provides a negative pressure suction adaptive dust removal system, which specifically comprises a gravity dust remover, a cyclone dust removal device, an air cooler, a bag dust remover, a centrifugal multi-stage induced draft fan and a control system; the gravity dust remover removes larger particles in ash gas by using gravity to achieve primary dust removal; the cyclone dust removal device is connected with the gravity dust remover through a pipeline and removes the ash gas by using centrifugal force to achieve secondary dust removal; the air cooler cools high-temperature gas discharged from the cyclone dust removal device to avoid burning the bag in the subsequent process; the bag dust remover realizes third-stage dust removal through the filtering effect of the bag to make the ash gas meet the emission standard; the centrifugal multi-stage induced draft fan is arranged at the end of the system to generate negative pressure to drive the flow of the ash gas; the control system monitors the running state of the system in real time through a temperature sensor, a pressure sensor and a level meter and sends out an alarm or performs adaptive dust removal; and the application realizes efficient dust removal of the ash gas and real-time monitoring and adaptive adjustment of the dust removal process.

Description

Technical Field

[0001] This invention relates to a negative pressure suction and conveying dust removal system, and more particularly to a negative pressure suction and conveying adaptive dust removal system for material handling in the production process of carbon anode materials. Background Technology

[0002] In the production of carbon anode materials, materials need to be frequently moved back and forth. The traditional grab buckets used for picking up, transferring, and discharging materials generate a large amount of dust. This dust permeates the production workshop and spreads unchecked, polluting the air. If emitted directly without dust removal treatment, it will severely pollute the atmosphere. To improve the working environment and reduce air pollution, my country has clear requirements for the unchecked emission of particulate matter from workshops. Therefore, a complete dust removal system is required in the production of carbon anode materials to collect the dust generated during material handling through sedimentation, centrifugation, and filtration.

[0003] To meet the aforementioned technical requirements, numerous domestic scholars have conducted research on dust removal systems. Patent publication number "CN108298322 A," entitled "A High-Temperature Particulate Material Transfer and Dust Removal System," relates to such a system. It comprises a movable suction nozzle, a transfer tank, a dust collection hood, a cyclone dust collector, a heat exchanger, a low-pressure pulse dust collector, and a Roots blower. Its working principle is as follows: under the negative pressure of the Roots blower, the transfer tank draws in material through the movable suction nozzle. The generated dust enters the cyclone dust collector through pipelines, is then purified by the low-pressure pulse dust collector, and is discharged by the Roots blower. A heat exchanger is installed on the pipeline connecting the upper end of the cyclone dust collector to the low-pressure pulse dust collector. A dust collection hood is installed at the lower end of the transfer tank, connected to the upper end of the cyclone dust collector through pipelines. The movable suction nozzle moves with the transfer tank; the dust collection hood opens during material discharge. This invention can reduce dust generation during material transfer. However, the system only has a single cyclone dust collector, and the filter bags in the pulse dust collector are of the ordinary type, resulting in low dust removal efficiency; the heat exchanger of the system is a single-pass type, resulting in poor heat dissipation; the system cannot detect the temperature and pressure at the inlet and outlet of each device in real time, thus it cannot adjust the air speed of the air cooler fan and Roots blower in real time to meet the needs of the current working conditions, resulting in a low level of automation and weak stability of the system.

[0004] Patent CN 109893945 A, entitled "A High-Temperature Material Conveying, Unloading, and Dust Removal System and Method," relates to a high-temperature material conveying, unloading, and dust removal system. This system comprises a retractable suction pipe, a large hopper, a cyclone dust collector, an air cooler, a first bag filter, a first Roots blower, a second bag filter, and a second Roots blower. Its key feature is that during material conveying, the first Roots blower is activated and the second Roots blower is shut off; the dust gas is filtered by the first bag filter and discharged by the first Roots blower. During unloading, the second Roots blower is activated and the first Roots blower is shut off; the dust gas is filtered by the second bag filter to form clean air, which is then discharged by the second Roots blower. This system has high dust removal efficiency. However, the bag filters in this dust removal system use ordinary bags, resulting in low filtration efficiency and uneven stress on the bags, leading to a short service life. Furthermore, the air cooler in this dust removal system uses bare tubes for heat dissipation, resulting in a relatively small heat dissipation area and low heat dissipation efficiency. Summary of the Invention

[0005] To address existing problems, this invention proposes a negative pressure suction and delivery adaptive dust removal system. The system uses a centrifugal multi-stage induced draft fan to generate negative pressure, driving the dust gas through a gravity dust collector, a cyclone dust collector, an air cooler, and a bag filter in sequence. Under the action of gravity, centrifugal force, and bag filtration, the dust in the dust gas is separated, achieving efficient dust removal.

[0006] To achieve the above objectives, a negative pressure suction adaptive dust removal system is provided, characterized in that: the system includes a gravity dust collector, a cyclone dust collector, an air cooler, a bag filter, a multi-stage centrifugal induced draft fan, and a control system. The gravity dust collector is connected to the cyclone dust collector via a pipeline, the cyclone dust collector is connected to the air cooler via a pipeline, the air cooler is connected to the bag filter via a pipeline, and the multi-stage centrifugal induced draft fan is connected to the bag filter via a pipeline and placed at the end of the system; sensors in the control system are distributed at the inlet and outlet of the device and in the material hopper to monitor the operating status of the dust removal system in real time.

[0007] The gravity dust collector includes: a dust-gas separation pipe, a baffle plate, a multi-stage exhaust pipe, and a dust hopper. The upper end of the dust-gas separation pipe is fixed to the top of the gravity dust collector, and the lower end of the dust-gas separation pipe is inserted into the interior of the gravity dust collector. The baffle plate is fixed to the interior of the gravity dust collector, causing large dust particles with a diameter greater than 50μm to fall into the dust hopper under the action of gravity. The upper end of the multi-stage exhaust pipe is fixed to the top of the gravity dust collector, and the lower end of the multi-stage exhaust pipe is inserted into the interior of the gravity dust collector, drawing the dust gas after the removal of large dust particles into the cyclone dust collector.

[0008] The cyclone dust collector includes: an inlet manifold, cyclone dust collectors, an outlet manifold, and a second ash hopper. Multiple cyclone dust collectors are connected in parallel, linked end-to-end by the inlet and outlet manifolds to achieve interconnection. The second ash hopper is connected to the lower end of the cyclone dust collectors to collect dust separated from the ash gas. The cyclone dust collector includes: a volute, a riser pipe, a conical cyclone tube, and an exhaust pipe. Ash gas drawn in from the gravity dust collector is distributed through the inlet manifold to multiple parallel cyclone dust collectors. Dust particles with a diameter of 5–50 μm experience centrifugal force within the cyclone dust collectors, causing them to settle into the second ash hopper. The separated ash gas is collected in the outlet manifold and drawn into an air cooler.

[0009] The air cooler includes an inlet / outlet section, a heat dissipation section, and a dust collection section. The inlet / outlet section is fixed to the upper end of the heat dissipation section, and the dust collection section is fixed to the lower end of the heat dissipation section. The inlet / outlet section also includes an air inlet chamber and an air outlet chamber. The heat dissipation section includes a high-temperature finned tube assembly, a low-temperature finned tube assembly, and a forced cooling fan. The dust collection section also includes a dust hopper. The dust gas drawn in from the cyclone dust collector first enters the high-temperature finned tube assembly through the air inlet chamber, then enters the air outlet chamber through the low-temperature finned tube assembly, and is fully cooled in the heat dissipation section before being drawn into the bag filter dust collector.

[0010] The baghouse dust collector includes: a pulse-jet cleaning device, a bag assembly, an upper cylinder, and a lower cylinder. The pulse-jet cleaning device is located on one side of the upper cylinder, and the lower cylinder is fixed to the lower end of the upper cylinder. The bag assembly is located inside the baghouse dust collector. The bag assembly also includes: pleated filter bags and filter tube sheets; the upper cylinder also includes: a bag hopper and an air outlet; the lower cylinder also includes: a cylinder, a dust hopper, and an air inlet; the dust gas drawn in from the air cooler enters the baghouse dust collector through the air inlet, is filtered and removed by the bag assembly, and is discharged into the atmosphere through the air outlet. When the pressure difference between the inside and outside of the bag assembly reaches a set value, the pulse-jet cleaning device automatically sprays compressed air to back-blow the bag assembly, blowing away the accumulated dust on the bag assembly and shaking it into the dust hopper.

[0011] The control system includes: a temperature sensor, a pressure sensor, and a level gauge; the temperature sensor is distributed at the inlet and outlet of the air cooler to detect the temperature at the inlet and outlet of the air cooler; the pressure sensor is distributed at the outlet of the gravity dust collector, the outlet manifold of the cyclone dust collector, the outlet of the air cooler, the inside of the bag filter hopper, and the outlet of the bag filter to detect the pressure status at each location; the level gauge is distributed in hopper one of the gravity dust collector, hopper two of the cyclone dust collector, and hopper four of the bag filter to detect the material accumulation height.

[0012] The cyclone dust collector mentioned above has multiple units connected in parallel, meaning that the number of cyclone dust collectors connected in parallel is 2 to 6.

[0013] The centrifugal multistage induced draft fan is connected to the air outlet of the bag filter and placed at the end of the system. It drives the dust gas to flow in each device and pipeline by generating negative pressure.

[0014] The lower ends of the conical cyclone tubes of all the parallel cyclone dust collectors are connected to the second ash hopper, so that the dust separated in the cyclone dust collector is discharged into the second ash hopper.

[0015] Compared with existing technologies, the aforementioned negative pressure suction and adaptive dust removal system has the following advantages.

[0016] ① Cyclone dust collectors have high dust removal efficiency. A cyclone dust collector consists of multiple cyclone dust collectors connected in parallel. The dust entering the cyclone dust collector is diverted to each cyclone dust collector, and the dust is removed by cyclone dust removal at the same time, which improves the dust removal efficiency.

[0017] ② The air cooler has good heat dissipation performance. The air cooler uses finned tubes for heat dissipation, which have a larger heat dissipation area compared to bare tubes; the air cooler uses a two-pass heat dissipation method, which extends the heat dissipation time of the ash gas and can achieve a good heat dissipation effect for high-temperature ash gas.

[0018] ③ Baghouse dust collectors have high dust removal efficiency. The pleated bags selected by baghouse dust collectors have a larger filtration area, which can filter a larger amount of dust and gas per unit time. When the pulse-jet cleaning device blows dust, the pleated bags will expand significantly, generating strong vibrations on the dust on the bags, making it easier for the dust to detach from the bags and enhancing the dust blowing effect of the pulse-jet cleaning device.

[0019] ④ The baghouse has good mechanical properties. The overall structure of the baghouse is cylindrical. Compared with the square structure, the cylindrical structure distributes the stress more evenly and is less prone to deformation under negative pressure.

[0020] ⑤ The entire system boasts a high degree of automation and intelligence. The control system can monitor the inlet and outlet temperatures of the air cooler in real time and automatically adjust the forced cooling fan speed based on the temperature difference, effectively reducing energy consumption while meeting heat dissipation requirements. The control system can also monitor the pressure at the gravity dust collector outlet, the cyclone dust collector outlet manifold, the air cooler outlet, and the bag filter outlet in real time, adjusting the centrifugal multi-stage induced draft fan speed accordingly to ensure the normal operation of each device in the system, improving system stability and reducing energy consumption. Furthermore, the control system can monitor the pressure inside the baghouse in real time and control the jet-blowing device to blow air onto the bags based on the pressure difference between the baghouse pressure and the bag filter outlet pressure. This series of devices enhances the overall automation and intelligence of the system. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 yes Figure 1 A schematic diagram of the gravity dust collector structure.

[0023] Figure 3 yes Figure 1 A schematic diagram of the cyclone dust collector in the image.

[0024] Figure 4 yes Figure 3 A schematic diagram of the cyclone dust collector structure.

[0025] Figure 5 yes Figure 1 A schematic diagram of the air cooler structure.

[0026] Figure 6 yes Figure 5 A schematic diagram of the structure of the inlet / outlet section, heat dissipation section, and dust collection section.

[0027] Figure 7 yes Figure 1 A schematic diagram of the structure of a bag filter dust collector.

[0028] Figure 8 yes Figure 1 A schematic diagram of the jet blowing device, bag device, upper cylinder and lower cylinder structure.

[0029] Figure 9 yes Figure 8 A schematic diagram of the bag device structure.

[0030] Figure 10 yes Figure 1 A schematic diagram of the structure of a centrifugal multistage induced draft fan.

[0031] above Figures 1 to 10The markings are as follows: 1. Gravity dust collector, 1-1. Ash-gas separation pipe, 1-2. Baffle plate, 1-3. Multi-stage exhaust pipe, 1-4. Ash hopper one; 2. Cyclone dust collector, 2-1. Inlet manifold, 2-2. Cyclone dust collector, 2-2-1. Volute, 2-2-2. Air riser, 2-2-3. Conical cyclone, 2-2-4. Exhaust pipe, 2-3. Outlet manifold, 2-4. Ash hopper two; 3. Air cooler, 3-1. Inlet / outlet section, 3-1-1. Inlet chamber, 3-1-2. Outlet chamber, 3-2. Heat dissipation section, 3-2-1 1. High-temperature finned tube assembly, 3-2-2; Low-temperature finned tube assembly, 3-2-3; Forced cooling fan, 3-3; Ash collection section, 3-3-1; Ash hopper three; 4. Baghouse dust collector, 4-1; Pulse jet cleaning device, 4-2; Baghouse device, 4-3; Upper cylinder, 4-3-1; Baghouse, 4-3-2; Air outlet, 4-4; Lower cylinder, 4-4-1; Cylindrical, 4-4-2; Ash hopper four, 4-4-3; Air inlet; 5. Centrifugal multi-stage induced draft fan; 6. Control system, 6-1; Temperature sensor, 6-2; Pressure sensor, 6-3; Level gauge. Detailed Implementation

[0032] The technical solution of the present invention will be further described below with reference to the accompanying drawings.

[0033] An adaptive dust removal system for negative pressure suction conveying in the production process of carbon anode materials is characterized by the following: the system includes a gravity dust collector 1, a cyclone dust collector 2, an air cooler 3, a bag filter 4, a multi-stage centrifugal induced draft fan 5, and a control system 6; the gravity dust collector 1 is connected to the cyclone dust collector 2 through a pipe, the cyclone dust collector 2 is connected to the air cooler 3 through a pipe, the air cooler 3 is connected to the bag filter 4 through a pipe, and the multi-stage centrifugal induced draft fan 5 is connected to the bag filter 4 through a pipe and placed at the end of the system; sensors in the control system 6 are distributed at the inlet and outlet of the device and the material hopper to monitor the operating status of the dust removal system in real time.

[0034] The gravity dust collector 1 includes: a dust-gas separation pipe 1-1, a baffle plate 1-2, a multi-stage exhaust pipe 1-3, and a dust hopper 1-4. The upper end of the dust-gas separation pipe 1-1 is fixed to the top of the gravity dust collector 1, and the lower end of the dust-gas separation pipe 1-1 is inserted into the interior of the gravity dust collector 1. The baffle plate 1-2 is fixed to the interior of the gravity dust collector 1, causing large dust particles with a diameter greater than 50μm to fall into the dust hopper 1-4 under the action of gravity. The upper end of the multi-stage exhaust pipe 1-3 is fixed to the top of the gravity dust collector 1, and the lower end of the multi-stage exhaust pipe 1-3 is inserted into the interior of the gravity dust collector 1, drawing the dust gas after the removal of large dust particles into the cyclone dust collector 2.

[0035] The cyclone dust collector 2 includes: an inlet manifold 2-1, a cyclone dust collector 2-2, an outlet manifold 2-3, and a dust hopper 2-4. Two cyclone dust collectors 2-2 are connected in parallel, respectively, through the inlet manifold 2-1 and the outlet manifold 2-3, achieving interconnection between the cyclone dust collectors 2-2 and thus improving the efficiency of cyclone dust collection. Cyclone dust collector 2-2 includes: a volute 2-2-1, a riser pipe 2-2-2, a conical cyclone 2-2-3, and an exhaust pipe 2-2-4. Dust drawn in from gravity dust collector 1 is diverted through inlet manifold 2-1 to two parallel cyclone dust collectors 2-2. Dust hopper 2-4 is connected to the lower end of the conical cyclone 2-2-3 of the two parallel cyclone dust collectors 2-2. Dust particles with a diameter of 5–20 μm are subjected to centrifugal force within the cyclone dust collectors 2-2, thus settling into dust hopper 2-4. The separated dust gas is collected in outlet manifold 2-3 and drawn into air cooler 3.

[0036] The air cooler 3 includes: an inlet / outlet section 3-1, a heat dissipation section 3-2, and a dust collection section 3-3; the inlet / outlet section 3-1 is fixed to the upper end of the heat dissipation section 3-2, and the dust collection section 3-3 is fixed to the lower end of the heat dissipation section 3-2. The inlet / outlet section 3-1 includes: an air inlet chamber 3-1-1 and an air outlet chamber 3-1-2; the heat dissipation section 3-2 includes: a high-temperature finned tube assembly 3-2-1, a low-temperature finned tube assembly 3-2-2, and a forced cooling fan 3-2-3. Finned tubes are selected for heat dissipation, providing a larger heat dissipation area compared to plain tubes. The dust collection section 3-3 also includes: a dust hopper 3-3-1. The dust gas drawn in from the cyclone dust collector 2 first enters the high-temperature finned tube assembly 3-2-1 through the air inlet chamber 3-1-1, then enters the air outlet chamber 3-1-2 through the low-temperature finned tube assembly 3-2-2, and is then drawn into the bag filter 4. Through double-pass heat dissipation, the dust gas can stay in the heat dissipation section 3-2 for a longer time, thereby getting sufficient cooling and achieving a good heat dissipation effect.

[0037] The baghouse dust collector 4 includes: a pulse-jet cleaning device 4-1, a bag assembly 4-2, an upper cylinder 4-3, and a lower cylinder 4-4. The pulse-jet cleaning device 4-1 is located on one side of the upper cylinder 4-3, and the lower cylinder 4-4 is fixed to the lower end of the upper cylinder 4-3. The bag assembly 4-2 is located inside the baghouse dust collector 4. The bag assembly 4-2 further includes: a pleated bag 4-2-1 and a bag tube sheet 4-2-2. The pleated bag 4-2-1 has a pleated structure, which, compared with ordinary bags, has a larger filtration area per unit area and can filter a larger amount of dust and gas per unit time. The upper cylinder 4-3 further includes: a bag chamber 4-3-1 and an air outlet 4-3-2. The bag chamber 4-3-1 has a cylindrical structure. Compared with a square structure, the cylindrical structure has a more uniform stress distribution and is less prone to deformation under negative pressure. The lower cylinder 4-4 of the baghouse includes: a cylinder 4-4-1, a dust hopper 4-4-2, and an air inlet 4-4-3. Dust drawn in from the air cooler 3 enters the baghouse dust collector 4 through the air inlet 4-4-3, is filtered by the bag filter 4-2, and is discharged into the atmosphere through the air outlet 4-3-2. When the pressure difference between the inside and outside of the bag filter 4-2 reaches a set value, the jet cleaning device 4-1 automatically jets compressed air to back-blow the pleated bags 4-2-1. The pleated bags 4-2-1 expand significantly, making it easier for accumulated dust to detach from the pleated bags, achieving a good jet cleaning effect. The dust shaken off by the back-blowing finally falls into the dust hopper 4-4-2. A centrifugal multi-stage induced draft fan 5 is connected to the air outlet 4-3-2 of the baghouse dust collector 4 and is placed at the end of the system. It drives the dust to flow through the various devices and pipes by generating negative pressure.

[0038] The control system 6 includes a temperature sensor 6-1, a pressure sensor 6-2, and a level gauge 6-3. The temperature sensor 6-1 is located at the inlet and outlet of the air cooler 3, used to detect the temperature at the inlet and outlet of the air cooler 3, and automatically adjusts the airflow speed of the forced cooling fan based on the temperature difference, effectively reducing energy consumption while meeting heat dissipation requirements. The pressure sensor 6-2 is located at the outlet of the gravity dust collector 1, the outlet manifold 2-3 of the cyclone dust collector 2, the outlet of the air cooler 3, the inside of the baghouse hopper 4-3-1, and the outlet of the baghouse dust collector 4, used to detect the pressure status at each location, and adjust the speed of the centrifugal multi-stage induced draft fan 5 in real time based on the pressure conditions at the outlets of the gravity dust collector 1, the outlet manifold 2-3 of the cyclone dust collector 2, the outlet of the air cooler 3, and the outlet of the baghouse dust collector 4, ensuring the normal operation of each device in the system, improving system stability, and reducing system energy consumption. The backflushing of the jet-blowing device 4-1 is controlled based on the pressure difference between the inside of the baghouse hopper 4-3-1 and the outlet of the baghouse dust collector 4, realizing intelligent system control. The level gauges 6-3 are distributed in the ash hopper 1-4 of the gravity dust collector 1, the ash hopper 2-4 of the cyclone dust collector 2, and the ash hopper 4-4-2 of the bag dust collector 4. They are used to detect the accumulation height of materials. When there is too much material, an alarm will be triggered to prompt the operator to discharge the ash.

[0039] The above embodiments are merely specific examples to further illustrate the purpose, technical solution, and beneficial effects of the present invention, and the present invention is not limited thereto. Any equivalent substitutions or modifications made within the scope of the disclosure of the present invention are included within the protection scope of the present invention.

Claims

1. A negative pressure suction adaptive dust removal system, comprising a gravity dust collector (1), a cyclone dust collector (2), an air cooler (3), a bag filter (4), and a centrifugal multistage induced draft fan (5); wherein the gravity dust collector (1) is connected to the cyclone dust collector (2) via a pipe, the cyclone dust collector (2) is connected to the air cooler (3) via a pipe, the air cooler (3) is connected to the bag filter (4) via a pipe, and the centrifugal multistage induced draft fan (5) is connected to the bag filter (4) via a pipe and placed at the end of the system, thereby generating negative pressure to drive the dust gas to flow in each device and pipe; characterized in that: The system also includes a control system (6), in which sensors are distributed at the air inlet, outlet and material bin of the device to monitor the operating status of the dust removal system in real time; The gravity dust collector (1) includes: a dust-gas separation pipe (1-1), a baffle plate (1-2), a multi-stage exhaust pipe (1-3), and a dust hopper (1-4); the upper end of the dust-gas separation pipe (1-1) is fixed to the top of the gravity dust collector (1), and the lower end of the dust-gas separation pipe (1-1) is inserted into the interior of the gravity dust collector (1); the baffle plate (1-2) is fixed to the interior of the gravity dust collector (1), causing large dust particles with a particle size greater than 50 μm to fall into the dust hopper (1-4) under the action of gravity; the upper end of the multi-stage exhaust pipe (1-3) is fixed to the top of the gravity dust collector (1), and the lower end of the multi-stage exhaust pipe (1-3) is inserted into the interior of the gravity dust collector (1), drawing the dust gas after removing large dust particles into the cyclone dust collector (2); The cyclone dust collector (2) includes: an inlet manifold (2-1), a cyclone dust collector (2-2), an outlet manifold (2-3), and a second ash hopper (2-4); multiple cyclone dust collectors (2-2) are connected in parallel, respectively connected end-to-end through the inlet manifold (2-1) and the outlet manifold (2-3) to achieve interconnection between the cyclone dust collectors (2-2), and the second ash hopper (2-4) is connected to the lower end of the cyclone dust collector (2-2); the cyclone dust collector (2-2) includes: a volute (2-2-1), a riser pipe (2-2-2), a conical cyclone cylinder (2-2-3), and an exhaust pipe (2-2-4). The ash gas sucked in from the gravity dust collector (1) is diverted through the inlet manifold (2-1) to multiple parallel cyclone dust collectors (2-2), with a particle size of 5~50. Dust particles of μm generate centrifugal force in the cyclone dust collector (2-2), thus settling into the ash hopper (2-4); the separated ash gas is collected in the outlet manifold (2-3) and drawn into the air cooler (3); The air cooler (3) includes: an inlet / outlet section (3-1), a heat dissipation section (3-2), and a dust collection section (3-3); the inlet / outlet section (3-1) is fixed to the upper end of the heat dissipation section (3-2), and the dust collection section (3-3) is fixed to the lower end of the heat dissipation section (3-2); the inlet / outlet section (3-1) further includes: an air inlet chamber (3-1-1) and an air outlet chamber (3-1-2); the heat dissipation section (3-2) includes: a high-temperature finned tube assembly (3-2-1) and low-temperature fins. The duct assembly (3-2-2) and the forced cooling fan (3-2-3); the ash collection section (3-3) also includes: ash hopper three (3-3-1); the ash gas sucked in from the cyclone dust collector (2) first enters the high temperature finned tube assembly (3-2-1) through the air inlet chamber (3-1-1), and then enters the air outlet chamber (3-1-2) through the low temperature finned tube assembly (3-2-2). After being fully cooled in the heat dissipation section (3-2), it is sucked into the bag filter (4); The bag filter (4) includes: a pulse jet cleaning device (4-1), a bag filter assembly (4-2), an upper cylinder (4-3), and a lower cylinder (4-4); the pulse jet cleaning device (4-1) is located on one side of the upper cylinder (4-3), the lower cylinder (4-4) is fixed to the lower end of the upper cylinder (4-3), and the bag filter assembly (4-2) is located inside the bag filter (4); the bag filter assembly (4-2) further includes: a pleated bag (4-2-1) and a bag tube sheet (4-2-2); the upper cylinder (4-3) further includes: a bag hopper (4-3-1) and an air outlet (4-3-2); the lower cylinder (4-4) It also includes: a cylinder (4-4-1), a dust hopper four (4-4-2), and an air inlet (4-4-3); the dust gas drawn in from the air cooler (3) enters the bag filter (4) through the air inlet (4-4-3), and after being filtered and dusted by the bag device (4-2), it is discharged into the atmosphere through the air outlet (4-3-2); when the pressure difference between the inside and outside of the bag device (4-2) reaches the set value, the jet blowing device (4-1) will automatically spray compressed air to back-blow the bag device (4-2), and blow the dust accumulated on the bag device (4-2) back and shake it into the dust hopper four (4-4-2); The control system (6) includes: a temperature sensor (6-1), a pressure sensor (6-2), and a level gauge (6-3); the temperature sensor (6-1) is distributed at the inlet and outlet of the air cooler (3) to detect the temperature at the inlet and outlet of the air cooler (3); the pressure sensor (6-2) is distributed at the outlet of the gravity dust collector (1), the outlet manifold (2-3) of the cyclone dust collector (2), the outlet of the air cooler (3), the inside of the bag hopper (4-3-1), and the outlet of the bag dust collector (4) to detect the pressure status of each part; the level gauge (6-3) is distributed at the first hopper (1-4) of the gravity dust collector (1), the second hopper (2-4) of the cyclone dust collector (2), and the fourth hopper (4-4-2) of the bag dust collector (4) to detect the accumulation height of the material.

2. The negative pressure suction and conveying adaptive dust removal system according to claim 1, characterized in that: The cyclone dust collector (2-2) mentioned above has multiple parallel connections, which means that the number of parallel cyclone dust collectors (2-2) is 2 to 6.

3. The negative pressure suction and conveying adaptive dust removal system according to claim 1, characterized in that: The lower ends of the conical cyclone tubes (2-2-3) of all the parallel cyclone dust collectors (2-2) are connected to the second ash hopper (2-4), so that the dust separated in the cyclone dust collector (2) is discharged into the second ash hopper (2-4).

Images