Full-automatic rotary blowing dust removal device

Abstract

The invention relates to a full-automatic rotary blowing dust removal device, relates to the technical field of dust removal devices, and aims to solve the problem of short service life of existing filter bag dust removal. The full-automatic rotary blowing dust removal device comprises a dust removal cylinder, a mounting plate is arranged in the dust removal cylinder, and a plurality of filter bags are annularly arranged on the mounting plate; a centrifugal blower is arranged at the top of the dust removal barrel and is communicated with a gas conveying pipeline, the gas conveying pipeline comprises a main pipeline and a plurality of branch pipelines, the branch pipelines are communicated into the main pipeline, a nozzle is arranged at the bottom of each branch pipeline, and the nozzles directly face the centers of the corresponding filter bags; a three-in-one variable-frequency gear motor and a slewing bearing are arranged at the top of the dust removal barrel, the three-in-one variable-frequency gear motor is connected with a main pipeline of the gas conveying pipeline through the slewing bearing and drives the whole gas conveying pipeline to rotate around the axis of the gas conveying pipeline at a constant speed, the nozzle is a critical flow Venturi nozzle, and a conical expansion section is arranged at the tail of the nozzle. According to the invention, the comprehensive dust cleaning effect is realized, the damage of high-pressure injection to the filter bag is effectively reduced, and the service life of the filter bag is prolonged.

Description

Technical Field

[0001] This application relates to the field of dust removal equipment technology, and in particular to a fully automatic rotary jet dust removal device. Background Technology

[0002] Industrial production processes generate a large amount of particulate matter. If this dust is released directly into the atmosphere without effective treatment, it will not only cause serious environmental pollution, leading to severe weather such as smog and harming human health, but also cause wear and tear on production equipment, reducing its service life and operating efficiency, and affecting product quality. Therefore, dust removal technology is an indispensable part of industrial production and is of vital importance for achieving clean production, protecting the environment, and ensuring stable production operations.

[0003] Currently, there are many types of dust removal technologies widely used in the market, including mechanical dust collection, wet dust collection, electrostatic precipitators, and bag filters. Among them, bag filters are widely used in many industrial fields due to their advantages such as high efficiency, stability, and strong adaptability. Bag filters use filter bags to filter dust-laden gas, trapping dust on the surface of the filter bags while clean gas passes through and is discharged, thereby achieving the purpose of purifying the gas.

[0004] Traditional filter bag dust collectors mostly use pulse controllers or PLCs to trigger the jet valves to blow compressed air into the filter bags through the jet pipes to achieve instantaneous expansion and dust removal. However, the mechanical stress caused by high-pressure jet blowing can easily cause the filter bag fibers to break or wear, resulting in a shortened service life and the need for frequent replacement. This not only increases the cost of consumables but also affects the continuity of production due to downtime for maintenance. In addition, it requires equipment such as air compressors, refrigerated dryers, air tanks, oil-water filters, and pulse valves, which are complex in structure and have high maintenance costs. Therefore, improvements are needed. Summary of the Invention

[0005] To address the short service life of existing filter bag dust collectors, this application provides a fully automatic rotary jet dust collector.

[0006] The fully automatic rotary jet dust collector provided in this application adopts the following technical solution: A fully automatic rotary jet dust collector includes a dust collector cylinder. A mounting plate is horizontally arranged inside the dust collector cylinder, and several filter bags are arranged in a ring on the mounting plate. A centrifugal blower is installed at the top of the dust collector cylinder, and the centrifugal blower is connected to an air supply pipe. The air supply pipe includes a main pipe and multiple branch pipes, all of which are connected to the main pipe. Each branch pipe has a nozzle at its bottom, with the nozzle facing the center of the corresponding filter bag. A three-in-one variable frequency reduction motor and a slewing bearing are installed at the top of the dust collector cylinder. The three-in-one variable frequency reduction motor is connected to the main air supply pipe through the slewing bearing and drives the entire air supply pipe to rotate uniformly around its axis, causing each nozzle to sequentially sweep across the upper opening of each filter bag. The nozzles are critical flow Venturi nozzles, and the nozzle tails are provided with conical expansion sections to reduce pressure loss during the jetting process.

[0007] Because the mechanical stress of high-pressure blowing can easily cause the filter bag fibers to break or wear, resulting in a shortened service life and the need for frequent replacement, it not only increases the cost of consumables, but also affects the continuity of production due to downtime for maintenance. At the same time, it requires the equipment such as air compressors, refrigerated dryers, air tanks, oil-water filters, and pulse valves, which are complex in structure and have high maintenance costs. By adopting the above technical solution, including a dust collector cylinder, several filter bags are installed in the dust collector cylinder through mounting plates. The filter bags are arranged in a ring. A centrifugal blower is installed at the top of the dust collector cylinder. The air supply pipeline is connected to the centrifugal blower. The air supply pipeline includes a main pipeline and multiple branch pipelines. The nozzles are installed at the bottom of the branch pipelines. A three-in-one variable frequency reduction motor is connected to the main pipeline of the air supply pipeline through a slewing bearing and drives the entire air supply pipeline to rotate at a constant speed around its axis. When the dust removal device is performing dust removal operations, the centrifugal blower starts to operate, delivering high-speed airflow from the top of the dust removal cylinder into the cylinder. This high-speed airflow enters the main pipe of the air delivery pipeline, and then splits into multiple branch pipes, finally reaching the nozzles at the bottom of each branch pipe directly opposite the center of the elongated pleated filter bag. The nozzles adopt a critical flow Venturi structure, and the conical expansion section at the tail end can significantly reduce the pressure loss during the blowing process. At the same time, the three-in-one variable frequency reduction motor at the top of the dust removal cylinder starts, connects to the main pipe of the air delivery pipeline through the slewing bearing, and drives the entire air delivery pipeline to rotate at a constant speed around its axis. The air delivery pipeline and the dust removal cylinder are sealed with a sealing element. As the air delivery pipeline rotates at a constant speed, each nozzle sweeps across the top of each filter bag in turn. The airflow continuously sprayed from the nozzle blows off the dust adhering to the surface of the filter bag. At this time, the Venturi structure located at the head of the bag cage inside the filter bag generates negative pressure when the blowing airflow passes through its throat, inducing a large amount of secondary air to enter, enhancing the dust removal effect. The blown-off dust flows to the rear conveying equipment along with the material. During the dust removal process, the differential pressure transmitter continuously monitors the pressure difference between the inside and outside of the filter bag in real time. When too much dust accumulates on the surface of the filter bag, causing the filter bag to become clogged and the pressure difference between the inside and outside of the filter bag exceeds the set warning value, the differential pressure transmitter will quickly send this signal back to the control system. After receiving the signal, the control system changes the frequency of the three-in-one variable frequency reduction motor and increases the motor speed. As the motor speed increases, the rotation speed of the air delivery pipeline increases, shortening the blowing cycle of each filter bag and increasing the number of times the filter bag is blown per unit time, thereby improving the dust removal efficiency. By incorporating a centrifugal blower, air supply pipeline, nozzles, and a three-in-one variable frequency geared motor, a comprehensive dust removal effect is achieved. The air supply pipeline, combined with the three-in-one variable frequency geared motor, drives the entire unit to rotate at a uniform speed, effectively reducing the damage to the filter bags caused by high-pressure blowing, extending the service life of the filter bags, simplifying the equipment structure, reducing maintenance difficulty and cost, and improving the operational stability of the dust removal device.

[0008] Optionally, the filter bags are arranged in multiple concentric rings along the radial direction on the mounting plate, and the number of filter bags increases sequentially from the center of the mounting plate to the outer periphery.

[0009] By adopting the above technical solution, the filter bags are arranged in multiple concentric rings along the radial direction on the mounting plate, and the number of filter bags increases sequentially from the center of the mounting plate to the outer periphery. By setting the arrangement and number of filter bags, the dust-laden gas can achieve uniform filtration distribution on the filter bags in different areas according to the gas flow characteristics and dust distribution pattern after entering the dust collector cylinder.

[0010] Optionally, the mounting plate has a plurality of mounting holes, the number of which is the same as the number of filter bags, and the filter bags are arranged in the corresponding mounting holes.

[0011] By adopting the above technical solution, several mounting holes are opened through the mounting plate; through the setting of mounting holes, the filter bags are accurately arranged in the corresponding mounting holes, the filter bags can be stably installed, and the shaking and displacement during operation are effectively reduced.

[0012] Optionally, the main pipeline of the gas transmission pipeline is vertically arranged along the axis of the dust collector cylinder, and each of the branch pipelines extends radially in the horizontal direction.

[0013] By adopting the above technical solution, the main pipeline of the air transmission pipeline is set vertically along the axis of the dust collector cylinder, and each branch pipeline extends radially in the horizontal direction. Through the setting of the shape of the air transmission pipeline, the high-speed airflow output from the centrifugal blower can be evenly distributed to each nozzle, and each filter bag can receive a relatively consistent cleaning airflow, thus achieving uniform cleaning.

[0014] Optionally, the number of nozzles corresponds to the arrangement of the filter bags, ensuring that each filter bag is covered by a spray at least once during one rotation of the gas delivery pipeline.

[0015] By adopting the above technical solution, the number of nozzles corresponds to the arrangement of filter bags. Through the setting of nozzles and filter bag arrangement, the airflow can act evenly on each filter bag, avoiding local filter bags from being damaged faster due to excessive blowing, and also preventing other filter bags from being clogged due to insufficient dust removal, thus extending the overall service life of the filter bags and improving filtration efficiency.

[0016] Optionally, the operating frequency of the three-in-one variable frequency geared motor is adjustable, and the three-in-one variable frequency geared motor is used to adjust the rotation speed of the gas transmission pipeline according to the dust removal requirements.

[0017] By adopting the above technical solution, the three-in-one variable frequency geared motor is used to adjust the rotation speed of the air supply pipeline according to the dust removal requirements; by setting the working frequency of the three-in-one variable frequency geared motor to be adjustable, the rotation speed of the air supply pipeline can be adjusted according to the actual dust removal requirements, thereby enhancing the dust removal force and ensuring the efficient filtration of the filter bag.

[0018] Optionally, the dust collector cylinder is equipped with a differential pressure transmitter for real-time monitoring of the pressure difference between the inside and outside of the filter bag, and when the pressure difference exceeds the set value, the three-in-one variable frequency reduction motor is controlled to increase the speed to shorten the blowing cycle.

[0019] By adopting the above technical solution, the differential pressure transmitter is installed on the dust collector cylinder. Through the setting of the differential pressure transmitter, the differential pressure transmitter can monitor the pressure difference between the inside and outside of the filter bag in real time. Once the pressure difference exceeds the set value, it indicates that the filter bag is seriously blocked. At this time, the differential pressure transmitter will quickly send a signal to control the three-in-one variable frequency reduction motor to increase the speed, thereby shortening the blowing cycle and improving the dust removal efficiency.

[0020] Optionally, the top of the dust collector cylinder is provided with a seal to prevent gas leakage, and the seal is arranged at the rotatable connection between the gas pipeline and the top of the dust collector cylinder.

[0021] By adopting the above technical solution, the sealing element is arranged at the rotating connection between the gas pipeline and the top of the dust collector cylinder; the sealing element can effectively prevent gas from leaking out from the rotating connection, ensuring that all dust-laden gas is filtered by the filter bag, improving the dust removal effect and avoiding environmental pollution.

[0022] Optionally, the filter bag is an elongated pleated filter bag, and a bag cage is provided inside the filter bag. The bag cage is divided into upper and lower sections, and a hook joint is provided between the upper and lower sections of the bag cage. The head of the bag cage is provided with a Venturi structure for inducing secondary airflow during jet blowing.

[0023] By adopting the above technical solution, through the filter bag structure and the setting of the venturi tube, an extended pleated filter bag is used, which has a larger filtration area compared to a non-pleated filter bag. At the same time, the filter bag is equipped with a bag cage with two sections connected by a hook joint inside. This structure is applicable to all extended filter bags. The venturi tube structure at the head of the bag cage can induce a large amount of secondary air to enter during the pulse-jet cleaning process by the negative pressure generated by the pulse-jet airflow through the throat of the venturi tube, which can effectively improve the pulse-jet cleaning effect and improve the filtration efficiency and pulse-jet cleaning capability.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. By using a centrifugal blower, air supply pipeline, nozzles and a three-in-one variable frequency geared motor, a comprehensive dust removal effect is achieved. The air supply pipeline combined with the three-in-one variable frequency geared motor drives the whole to rotate at a uniform speed, which effectively reduces the damage of high-pressure jet cleaning to the filter bags, extends the service life of the filter bags, simplifies the equipment structure, reduces maintenance difficulty and cost, and improves the operational stability of the dust removal device. 2. By setting the arrangement and quantity of filter bags, the dust-laden gas can be evenly filtered and distributed on the filter bags in different areas according to the gas flow characteristics and dust distribution patterns after entering the dust collector cylinder; 3. By setting the differential pressure transmitter, the differential pressure transmitter can monitor the pressure difference between the inside and outside of the filter bag in real time. Once the pressure difference exceeds the set value, it indicates that the filter bag is seriously blocked. At this time, the differential pressure transmitter will quickly send a signal to control the three-in-one variable frequency reduction motor to increase the speed, thereby shortening the blowing cycle and improving the dust removal efficiency. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of a fully automatic rotary jet dust removal device in an embodiment of this application.

[0026] Figure 2 This is a schematic diagram illustrating the structure of the three-in-one variable frequency geared motor in the embodiments of this application.

[0027] Figure 3 This is a structural schematic diagram used in the embodiments of this application to illustrate the number of mounting plates and filter bags arranged.

[0028] Figure 4 This is a schematic diagram illustrating the installation of the filter bag in the embodiments of this application.

[0029] Figure 5 This is a schematic diagram illustrating the structure of a critical flow venturi nozzle in an embodiment of this application.

[0030] Explanation of reference numerals in the attached drawings: 1. Dust collector cylinder; 2. Mounting plate; 21. Mounting hole; 3. Filter bag; 4. Centrifugal blower; 5. Air supply pipeline; 51. Main pipeline; 52. Branch pipeline; 6. Nozzle; 61. Conical expansion section; 7. Three-in-one variable frequency geared motor; 8. Slewing bearing; 9. Differential pressure transmitter; 10. Seal; 11. Bag cage; 12. Hook connector; 13. Venturi tube structure. Detailed Implementation

[0031] To illustrate in detail the technical solutions adopted by the present invention to achieve the intended technical objectives, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Furthermore, the technical means or technical features in the embodiments of the present invention can be replaced without creative effort. The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0032] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0033] This application discloses a fully automatic rotary jet dust removal device. (Refer to...) Figure 1 The fully automatic rotary jet dust removal device includes a dust removal cylinder 1, and an installation plate 2 is horizontally installed inside the dust removal cylinder 1. In this embodiment, the installation plate 2 has a circular plate structure.

[0034] Reference Figure 1 and Figure 3 A number of filter bags 3 are arranged in a ring on the mounting plate 2. The filter bags 3 are used to filter dust. The filter bags 3 are arranged in multiple concentric rings along the radial direction on the mounting plate 2. The number of filter bags 3 increases from the center of the mounting plate 2 to the outer periphery. This allows the dust-laden gas to be evenly filtered and distributed on the filter bags 3 in different areas according to the gas flow characteristics and dust distribution pattern after entering the dust removal cylinder 1.

[0035] Reference Figure 1 and Figure 3 Meanwhile, a number of mounting holes 21 are provided through the mounting plate 2. The number of mounting holes 21 is the same as the number of filter bags 3. The filter bags 3 are arranged in the corresponding mounting holes 21. The filter bags 3 are precisely arranged in the corresponding mounting holes 21, and the filter bags 3 can be stably installed, effectively reducing shaking and displacement during operation.

[0036] Reference Figure 1 and Figure 4The filter bag 3 is an elongated pleated filter bag. Inside the filter bag 3, there is a bag cage 11. The bag cage 11 is divided into upper and lower sections. A hook connector 12 is installed between the upper and lower sections of the bag cage 11. A venturi structure 13 is installed at the head of the bag cage 11. The elongated pleated filter bag 3 has a larger filtration area than the non-pleated filter bag. At the same time, the filter bag 3 is equipped with a bag cage 11 that is divided into upper and lower sections and connected in the middle by a hook connector 12. This structure is applicable to all elongated filter bags 3. During the pulse-jet cleaning process, the negative pressure generated by the pulse-jet airflow through the throat of the venturi can induce a large amount of secondary air to enter, effectively improving the pulse-jet cleaning effect and increasing the filtration efficiency and pulse-jet cleaning capability.

[0037] Reference Figure 1 and Figure 5 A centrifugal blower 4 is installed at the top of the dust collector cylinder 1. The centrifugal blower 4 is connected to an air supply pipe 5. The air supply pipe 5 includes a main pipe 51 and multiple branch pipes 52. One end of the main pipe 51 is connected to the air outlet of the centrifugal blower 4, and the other end of the main pipe 51 is a closed end. All of the multiple branch pipes 52 are connected to the main pipe 51. A nozzle 6 is installed at the bottom of each branch pipe 52. The nozzle 6 is directly facing the center of the corresponding filter bag 3. In this embodiment, the nozzle 6 is a critical flow venturi nozzle 6. The nozzle 6 has a conical expansion section 61 at its tail. The spray nozzle adopts a critical flow venturi nozzle 6. Compared with the traditional nozzle 6 structure, the critical flow venturi nozzle 6 has a conical expansion section 61 at its tail, which can effectively reduce the pressure loss of the nozzle 6 section. Under the best conditions, the pressure loss is only about 5% of the inlet pressure.

[0038] Reference Figure 1 The main pipe 51 of the gas transmission pipe 5 is vertically arranged along the axis of the dust collector cylinder 1, and each branch pipe 52 extends radially in the horizontal direction; so that the high-speed airflow output from the centrifugal blower 4 can be evenly distributed to each nozzle 6, and each filter bag 3 can receive a relatively consistent cleaning airflow, thus achieving uniform cleaning.

[0039] Reference Figure 1 and Figure 2 The top of the dust collector cylinder 1 is equipped with a three-in-one variable frequency reduction motor 7 and a slewing bearing 8. The three-in-one variable frequency reduction motor 7 is connected to the main pipe 51 of the air conveying pipe 5 through the slewing bearing 8, and drives the air conveying pipe 5 to rotate uniformly around its axis, so that each nozzle 6 sweeps across the upper opening of each filter bag 3 in sequence. In this embodiment, a rotary joint can be provided between the air conveying pipe 5 and the centrifugal blower 4. The rotary joint has a dynamic sealing structure that can maintain the airtightness between the main pipe 51 and the air outlet of the centrifugal blower 4 during the rotation of the air conveying pipe 5, effectively preventing gas leakage. At the same time, its special internal channel design can avoid entanglement when the air conveying pipe 5 rotates, ensuring that the airflow is smoothly delivered to each nozzle 6.

[0040] Reference Figure 1 The number of nozzles 6 corresponds to the arrangement of filter bags 3, ensuring that each filter bag 3 is covered by a spray at least once during one rotation of the air supply pipe 5; this allows the airflow to act evenly on each filter bag 3, avoiding accelerated damage to local filter bags 3 due to excessive spraying, and also preventing other filter bags 3 from becoming clogged due to insufficient dust removal, thus extending the overall service life of the filter bags 3 and improving filtration efficiency.

[0041] Reference Figure 1 and Figure 2 The top of the dust collector cylinder 1 is also equipped with a sealing element 10, which is located at the rotating connection between the gas pipeline 5 and the top of the dust collector cylinder 1. This effectively prevents gas from leaking out from the rotating connection, ensuring that all dust-laden gas is filtered by the filter bag 3, thereby improving the dust removal effect and avoiding environmental pollution.

[0042] Reference Figure 1 In this embodiment, the working frequency of the three-in-one variable frequency reduction motor 7 is adjustable. The three-in-one variable frequency reduction motor 7 is used to adjust the rotation speed of the air supply pipe 5 according to the dust removal requirements. It can adjust the rotation speed of the air supply pipe 5 according to the actual dust removal requirements, enhance the dust removal force, and ensure the efficient filtration of the filter bag 3.

[0043] Reference Figure 1 A differential pressure transmitter 9 is installed on the dust collector cylinder 1. When the differential pressure exceeds the set value, the transmitter controls the three-in-one variable frequency reduction motor 7 to increase the speed to shorten the blowing cycle. The differential pressure transmitter 9 can monitor the pressure difference between the inside and outside of the filter bag 3 in real time. Once the differential pressure exceeds the set value, it indicates that the filter bag 3 is seriously blocked. At this time, the differential pressure transmitter 9 will quickly send a signal to control the three-in-one variable frequency reduction motor 7 to increase the speed, thereby shortening the blowing cycle and improving the dust removal efficiency.

[0044] The implementation principle of the fully automatic rotary jet dust collector according to this application embodiment is as follows: When the dust collector is performing dust removal operations, the centrifugal blower 4 starts to operate, delivering high-speed airflow from the top of the dust collector cylinder 1 into the cylinder. This high-speed airflow enters the main pipe 51 of the air delivery pipe 5, and then splits into multiple branch pipes 52, finally reaching the nozzle 6 at the bottom of each branch pipe 52, which is directly opposite the center of the elongated pleated filter bag 3. The nozzle 6 adopts a critical flow Venturi structure, and its conical expansion section 61 at the tail can significantly reduce the pressure loss during the jetting process. At the same time, the three-in-one variable frequency reduction motor 7 at the top of the dust collector cylinder 1 starts. The main pipe 51 of the gas conveying pipe 5 is connected to the slewing bearing 8, and the gas conveying pipe 5 is driven to rotate at a constant speed around its axis. The gas conveying pipe 5 and the dust collector are sealed with a sealing element 10. As the gas conveying pipe 5 rotates at a constant speed, each nozzle 6 sweeps across the upper opening of each filter bag 3 in sequence. The airflow continuously sprayed from the nozzle 6 blows off the dust adhering to the surface of the filter bag 3. At this time, the Venturi structure 13 located at the head of the bag cage 11 inside the filter bag 3 generates negative pressure when the blowing airflow passes through its throat, inducing a large amount of secondary air to enter, which enhances the dust removal effect. The dust blown off flows to the rear conveying equipment along with the material. During the dust removal process, the differential pressure transmitter 9 continuously monitors the pressure difference between the inside and outside of the filter bag 3 in real time. When too much dust accumulates on the surface of the filter bag 3, causing the filter bag 3 to become clogged and the pressure difference between the inside and outside of the filter bag 3 exceeds the set warning value, the differential pressure transmitter 9 will quickly feed this signal back to the control system. After receiving the signal, the control system changes the frequency of the three-in-one variable frequency reduction motor 7 and increases the motor speed. As the motor speed increases, the rotation speed of the air conveying pipe 5 increases, shortens the blowing cycle of each filter bag 3, increases the number of times the filter bag 3 is blown per unit time, and improves the dust removal efficiency. By using centrifugal blower 4, air supply pipe 5, nozzle 6 and three-in-one variable frequency geared motor 7, a comprehensive dust removal effect is achieved. The air supply pipe 5 combined with the three-in-one variable frequency geared motor 7 drives the whole to rotate at a uniform speed, which effectively reduces the damage of high-pressure blowing to filter bag 3, extends the service life of filter bag 3, simplifies the equipment structure, reduces maintenance difficulty and cost, and improves the operational stability of the dust removal device.

[0045] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent substitutions, and improvements made to the above embodiments without departing from the scope of the present invention, based on the technical essence of the present invention and within the spirit and principles of the present invention, shall still fall within the protection scope of the present invention.

Claims

1. A fully automatic rotary jet dust collector, characterized in that: The device includes a dust collector cylinder, inside which a mounting plate is horizontally installed, and several filter bags are arranged in a ring on the mounting plate. A centrifugal blower is installed at the top of the dust collector cylinder, and the centrifugal blower is connected to an air supply pipeline. The air supply pipeline includes a main pipeline and multiple branch pipelines, all of which are connected to the main pipeline. Each branch pipeline has a nozzle at its bottom, and the nozzle is directly facing the center of the corresponding filter bag. A three-in-one variable frequency reduction motor and a slewing bearing are installed at the top of the dust collector cylinder. The three-in-one variable frequency reduction motor is connected to the main pipeline of the air supply pipeline through the slewing bearing and drives the entire air supply pipeline to rotate uniformly around its axis, so that each nozzle sweeps across the upper opening of each filter bag in sequence. The nozzle is a critical flow Venturi nozzle, and the nozzle tail is provided with a conical expansion section to reduce pressure loss during the blowing process.

2. The fully automatic rotary jet dust collector according to claim 1, characterized in that: The filter bags are arranged in multiple concentric rings along the radial direction on the mounting plate, and the number of filter bags increases sequentially from the center of the mounting plate to the outer periphery.

3. The fully automatic rotary jet dust collector according to claim 2, characterized in that: The mounting plate has a number of mounting holes, the number of which is the same as the number of filter bags, and the filter bags are arranged in the corresponding mounting holes.

4. The fully automatic rotary jet dust collector according to claim 1, characterized in that: The main pipeline of the gas transmission pipeline is vertically arranged along the axis of the dust collector cylinder, and each of the branch pipelines extends radially in the horizontal direction.

5. The fully automatic rotary jet dust collector according to claim 1, characterized in that: The number of nozzles corresponds to the arrangement of the filter bags, ensuring that each filter bag is covered by a spray at least once during one rotation of the gas pipeline.

6. The fully automatic rotary jet dust collector according to claim 1, characterized in that: The operating frequency of the three-in-one variable frequency geared motor is adjustable, and the three-in-one variable frequency geared motor is used to adjust the rotation speed of the gas transmission pipeline according to the ash removal requirements.

7. The fully automatic rotary jet dust collector according to claim 6, characterized in that: The dust collector cylinder is equipped with a differential pressure transmitter for real-time monitoring of the pressure difference between the inside and outside of the filter bag. When the pressure difference exceeds the set value, the transmitter controls the three-in-one variable frequency reduction motor to increase its speed to shorten the blowing cycle.

8. The fully automatic rotary jet dust collector according to claim 1, characterized in that: The top of the dust collector cylinder is equipped with a seal to prevent gas leakage, and the seal is located at the rotatable connection between the gas pipeline and the top of the dust collector cylinder.

9. The fully automatic rotary jet dust collector according to claim 1, characterized in that: The filter bag is an elongated pleated filter bag. The filter bag has a bag cage inside. The bag cage is divided into upper and lower sections. A hook joint is provided between the upper and lower sections of the bag cage. The head of the bag cage is provided with a Venturi structure for inducing secondary airflow during jet blowing.

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