Automatic smoke purification system and method for a forging press

Abstract

The application discloses a kind of forging press smoke automatic purification system and method, including smoke treatment unit, smoke collection unit, programmable controller and smoke concentration sensor, smoke collection unit includes dust collecting hood, at least one telescopic air pipe and at least one dust collecting pipe, and the number of telescopic air pipe corresponds with the number of dust collecting pipe one to one;Dust collecting hood is installed at the bottom of movable cross beam of forging press around, and the telescopic end of telescopic air pipe is connected with dust collecting pipe by spherical sealing joint, and dust collecting pipe is inserted into movable cross beam and extends to the bottom end surface of movable cross beam, and the outer air pipe end of telescopic air pipe is connected with smoke treatment unit;Smoke concentration sensor is arranged on the lower surface of movable cross beam, and the input end of programmable controller is connected with smoke concentration sensor, and the output end of programmable controller is connected with the executing component in smoke treatment unit.The application can collect the smoke generated in time and effectively, avoid smoke escape, and realize real-time monitoring and automatic start-stop control of the purification system of forging smoke.

Description

Technical Field

[0001] This invention belongs to the field of forging and pressing technology, and in particular relates to an automatic purification system and method for forging press dust. Background Technology

[0002] Forging is a common method for producing parts in industrial manufacturing, and forging presses are indispensable mechanical equipment for forging processes. Forging production generates a large amount of harmful fumes, causing environmental pollution, obstructing workers' vision, and endangering their health. Currently, commonly used forging presses are generally not equipped with dust collectors or have rudimentary dust collection devices that cannot meet the needs of modern development, making it difficult to effectively solve the aforementioned problems. In recent years, with the increasing demands for intelligent manufacturing, environmental protection, and green production, as well as growing emphasis on protecting workers' physical and mental health, there is an urgent need to find a solution to the problems caused by excessive fumes during the forging process.

[0003] Chinese Patent Publication No. CN103405985A discloses a water film dust removal device for a hot die forging press, which includes a detachable dust suction hood, a dust removal fan connected to the detachable dust suction hood via an air inlet, a closed settling tank connected to the air outlet of the dust removal fan, a settling box connected to the upper part of the closed settling tank, and an exhaust pipe connected to the settling box at the bottom. This device features a novel structure, convenient installation, low operating and maintenance costs, and easy dust removal. Dust such as graphite release agent and oxide scale used in forging undergoes primary settling through the detachable dust suction hood, separation by a centrifugal fan, secondary treatment through the water film, and tertiary settling through the settling box. This results in high dust removal efficiency, significantly improving the forging environment, achieving compliant emissions, and ensuring that the secondary treated wastewater is not discharged externally and can be repeatedly recycled.

[0004] Chinese Patent Publication No. CN211515507U discloses a dust collection device and dust removal system for a forging press, which includes a support, a track on the support, a moving device on the track, a dust collection pipe on the moving device, and a dust collection hood at the bottom of the dust collection pipe. The moving device can move on the track, and the dust collection hood is located above the forging press. The dust removal system for the forging press includes the aforementioned dust collection device, which solves the problem that the dust collection hood cannot be moved, so that when the forging press is not in use, the dust collection hood can be moved away from above the forging press, thereby facilitating maintenance by the staff.

[0005] Chinese Patent Publication No. CN217121211U discloses a dust collection hood for hot forging equipment in the hot forging industry, including a forging press; a front fixed cover is provided on the upper front of the forging press, and a telescopic linear guide rail and a pneumatic actuator A are mounted on the front fixed cover; the telescopic linear guide rail and the pneumatic actuator A are respectively connected to the front telescopic dust collection hood; a side fixed cover is provided on one side of the forging press, and a dust collection hood vent is provided on the other side; a side telescopic cover guide rail and a pneumatic actuator B are mounted on the side fixed cover, and the side telescopic cover guide rail and the pneumatic actuator B are respectively connected to the side telescopic dust collection hood; a back fixed dust collection hood is provided on the back of the forging press, and a linear guide rail and a pneumatic actuator C are mounted on the back fixed dust collection hood, and the linear guide rail and the pneumatic actuator C are respectively connected to the back telescopic dust collection hood. This design can effectively control the diffusion of dust.

[0006] However, existing dust removal devices for forging presses still have the following problems: 1. Low dust removal efficiency: Most existing dust collection hoods are located above the forging press. Forging generates a large amount of fumes, which escape rapidly, making it difficult to collect all the fumes effectively and promptly. Furthermore, the dust removal strategy cannot be optimized based on the dust concentration, resulting in low dust removal efficiency. While completely covering the forging press with a collection hood improves fumes collection efficiency, the setup is overly complex and hinders real-time monitoring of the forging press's operation.

[0007] 2. Low level of automation: Most existing equipment is ordinary electromechanical equipment that requires manual control to start and stop. It cannot operate autonomously according to the production status. The control method of the equipment is relatively primitive and can no longer meet the needs of the times.

[0008] 3. Low level of intelligence: The existing equipment does not have real-time monitoring function, and cannot control the working status of the dust removal system according to the concentration of dust generated during forging. It cannot achieve real-time coordination between forging production and dust removal system, and it is difficult to realize intelligent decision-making of system operation when there is dust and system hibernation when there is no dust.

[0009] 4. High energy consumption: Once the existing equipment is started manually, it will continue to run during forging production or production intervals, resulting in unnecessary waste of resources.

[0010] Therefore, in order to meet the urgent needs of automation, intelligence and greening of forging press dust purification devices, it is necessary to propose an automatic dust purification system and method for forging presses. Summary of the Invention

[0011] To address the problems of low dust removal efficiency, low automation and intelligence, and high energy consumption in existing traditional forging press dust removal devices, this invention provides an automatic dust purification system and method for forging presses. This solves the problems of low dust removal efficiency and high energy consumption caused by incomplete and untimely dust collection and the inability to monitor dust concentration in real time in existing devices, as well as the environmental pollution, obstruction of vision, and harm to workers' health caused by excessive dust in forging production.

[0012] To achieve the above objectives, the present invention adopts the following technical solution: An automatic dust purification system for forging presses includes a dust treatment unit, a dust collection unit, a programmable controller, and a dust concentration sensor. The dust collection unit includes a dust collection hood, at least one telescopic duct, and at least one dust collection pipe, with the number of telescopic ducts corresponding one-to-one with the number of dust collection pipes. The dust collection hood is installed around the bottom of the movable crossbeam of the forging press. The dust collection hood moves with the movable crossbeam and is used to collect the smoke and dust generated during the forging process. The outer duct of the telescopic air duct is installed on the upper crossbeam of the forging press. The telescopic end of the telescopic air duct is connected to the dust collection pipe through a ball-shaped sealing joint. The dust collection pipe extends into the movable crossbeam and extends to the bottom end face of the movable crossbeam. The outer duct end of the telescopic air duct is connected to the smoke and dust treatment unit. A dust concentration sensor is installed on the lower surface of the movable crossbeam. The input terminal of the programmable controller is connected to the dust concentration sensor to receive real-time dust concentration signals. The output terminal of the programmable controller is connected to the actuator in the dust treatment unit to control the start and stop of the actuator in the dust treatment unit according to the received signals.

[0013] In the above technical solution, preferably, the telescopic air duct includes an outer air duct and an inner air duct, the outer air duct is installed on the upper crossbeam of the forging press, and the inner air duct is sealed and telescopic within the outer air duct.

[0014] In the above technical solution, a further preferred embodiment is that the external air duct is connected to the main air duct via a connecting air duct, and the main air duct is connected to the smoke and dust treatment unit.

[0015] In the above technical solution, a more preferred embodiment is that the connecting air duct is equipped with a manual air valve.

[0016] In the above technical solution, preferably, the spherical sealing joint is supported on the movable crossbeam by a sliding tube support.

[0017] In the above technical solution, preferably, the dust treatment unit includes an air-water mixing device, a pre-spray water pipe, a smoke and dust removal duct, a water pump, a ground circulating water tank, a collection hood, a dust collector, a ground fan, an exhaust gas pipe, and an exhaust gas treatment device. One end of the pre-spray water pipe is connected to the air-water mixing device, and the other end of the pre-spray water pipe extends into the ground circulating water tank. A water pump is installed on the pre-spray water pipe, and the water pump controls the pre-spray water pipe to draw water from the ground circulating water tank for pre-spraying. The outlet of the air-water mixing device is connected to the smoke and dust removal duct, and the other end of the smoke and dust removal duct extends into the ground circulating water tank. The collection hood is located directly above the ground circulating water tank, and the top of the collection hood is connected to the inlet of the dust collector. The outlet of the dust collector is connected to the suction inlet of the ground fan through a pipe, and the outlet of the ground fan is connected to the exhaust gas treatment device through the exhaust gas pipe.

[0018] In the above technical solution, a further preferred embodiment is that the ground circulating water tank is equipped with an oil scraper, which is used to clean the sediment at the bottom of the water tank when cleaning the ground circulating water tank.

[0019] In the above technical solution, a further preferred embodiment is that a float switch is installed in the ground circulating water tank, and the float switch is connected to the input terminal of the programmable controller for automatically controlling the water level in the ground circulating water tank; the outlet of the exhaust gas treatment device is connected to the ground circulating water tank.

[0020] In the above technical solution, preferably, the system is connected to the remote control center via an Ethernet communication module.

[0021] An automatic purification method for forging press fumes includes the following steps: The dust concentration sensor reads the dust concentration inside the collection hood in real time and sends it to the programmable controller. The programmable controller determines whether the received dust concentration reaches the preset dust removal concentration value; When the judgment result is yes, the actuator in the dust treatment unit is started to run. When the judgment result is negative, the actuator in the dust treatment unit is not started. If the actuator in the dust treatment unit is running at this time, the actuator in the dust treatment unit is stopped.

[0022] The advantages and positive effects of this invention are: 1. High dust removal efficiency and low energy consumption: The system can collect all generated flue gas in a timely and effective manner, preventing flue gas escape, while not affecting real-time monitoring of the forging press operation; the system only operates when the dust concentration exceeds the standard, avoiding system idle operation and significantly reducing energy consumption. At the same time, by combining pre-spraying and formal spraying, the dust is effectively wetted and captured, improving dust removal efficiency.

[0023] 2. High degree of automation and intelligence: By integrating a dust concentration sensor and a programmable controller, this invention realizes real-time monitoring of forging dust and automatic start-stop control of the purification system, without the need for manual intervention, and achieves an intelligent operation mode of "working in dusty conditions and sleeping in dust-free conditions".

[0024] 3. Green and environmentally friendly, protecting health: It efficiently purifies the harmful fumes generated during the forging process, effectively improves the workshop environment, avoids environmental pollution, protects the health of operators, and slows down the aging of equipment caused by fumes pollution.

[0025] 4. Water resource recycling: By setting up ground-based circulating water tanks and exhaust gas treatment devices, the water used for spraying is recycled and reused, thus saving water resources.

[0026] In summary, this invention can automatically purify and treat fumes generated during the forging process, solving the problems of environmental pollution, obstructed visibility, harm to worker health, and accelerated equipment aging caused by the large amount of fumes generated in forging production and the lack of dust removal devices in existing forging presses. Simultaneously, this invention enables real-time monitoring of fume concentration, allowing for a more rational control system that achieves automatic fume purification during the forging process, reducing energy consumption, improving efficiency, and enhancing the system's automation and intelligence. This provides crucial support for achieving green production, protecting worker health, and extending equipment lifespan. Attached Figure Description

[0027] The technical solutions of the embodiments of this application will be further described in detail below with reference to the accompanying drawings. However, it should be understood that these drawings are designed for illustrative purposes only and are not intended to limit the scope of this application. In addition, unless otherwise specified, these drawings are only intended to conceptually illustrate the structural construction described herein and are not necessarily drawn to scale.

[0028] Figure 1 This is a front view of the dust collection unit and the forging press in the purification system of the present invention. Figure 2 This is a top view of the dust collection unit in the purification system of the present invention in conjunction with the forging press; Figure 3 This is a schematic diagram of the dust treatment unit and the programmable controller working together in the purification system of the present invention.

[0029] In the diagram: 1. Dust collection hood; 2. Telescopic duct; 2-1. External duct; 2-2. Internal duct; 3. Dust collection pipe; 4. Spherical sealing joint; 5. Connecting duct; 6. Main duct; 7. Movable crossbeam; 8. Upper crossbeam; 9. Air-water mixing device; 10. Pre-spray water pipe; 11. Smoke and dust removal duct; 12. Water pump; 13. Ground circulating water tank; 14. Float switch; 15. Collection hood; 16. Dust collector; 17. Ground fan; 18. Exhaust gas discharge pipe; 19. Exhaust gas treatment device; 20. Manual air valve; 21. Forging press exhaust point; 22. Oil scraper. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0031] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0032] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection," "joining," "installation," and "assembly" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] Please see Figures 1-3 The present invention provides an automatic dust purification system for forging presses, including a dust treatment unit, a dust collection unit, a programmable controller and a dust concentration sensor. The dust collection unit includes a dust collection hood 1, at least one telescopic air duct 2 and at least one dust collection pipe 3, and the number of telescopic air ducts 2 corresponds one-to-one with the number of dust collection pipes 3. The dust collection hood 1 is installed around the bottom of the movable crossbeam 7 of the forging press. The dust collection hood 1 moves with the movable crossbeam 7 and is used to collect the dust generated instantaneously during the forging process. The outer air duct 2-1 of the telescopic air duct 2 is installed on the upper crossbeam 8 of the forging press. The telescopic end of the telescopic air duct 2 is connected to the dust collection pipe 3 through the ball-shaped sealing joint 4. The dust collection pipe 3 extends into the movable crossbeam 7 and extends to the bottom end face of the movable crossbeam 7. The outer air duct 2-1 end of the telescopic air duct 2 is connected to the dust treatment unit. A dust concentration sensor is installed on the lower surface of the movable crossbeam. The input terminal of the programmable controller is connected to the dust concentration sensor to receive real-time dust concentration signals. The output terminal of the programmable controller is connected to the actuator in the dust treatment unit to control the start and stop of the actuator in the dust treatment unit according to the received signals.

[0034] In a preferred embodiment, the telescopic duct 2 includes an outer duct 2-1 and an inner duct 2-2. The outer duct 2-1 is installed on the upper crossbeam 8 of the forging press, and the inner duct 2-2 is sealed and telescopic within the outer duct 2-1.

[0035] In a preferred embodiment, the external air duct 2-1 is connected to the main air duct 6 via the connecting air duct 5, and the main air duct 6 is connected to the smoke and dust treatment unit.

[0036] In a preferred embodiment, the air outlet of the external air duct 2-1 forms the exhaust point 21 of the forging press, and a manual air valve 20 is provided on the connecting air duct 5. The manual air valve 20 is used to manually adjust the air volume of the connecting air duct 5.

[0037] In a preferred embodiment, the spherical sealing joint 4 is supported on the movable crossbeam 7 by a sliding tube support.

[0038] In a preferred embodiment, the dust treatment unit includes an air-water mixing device 9, a pre-spray water pipe 10, a smoke and dust removal duct 11, a water pump 12, a ground circulating water tank 13, a collection hood 15, a dust collector 16, a ground fan 17, an exhaust gas pipe 18, and an exhaust gas treatment device 19. One end of the pre-spray water pipe 10 is connected to the air-water mixing device 9, and the other end of the pre-spray water pipe 10 extends into the ground circulating water tank 13. A water pump 12 is installed on the pre-spray water pipe 10, and the water pump 12 controls the pre-spray water... Pipe 10 draws water from the ground circulating water tank 13 for pre-spraying. The outlet of the air-water mixing device 9 is connected to the smoke and dust removal duct 11, and the other end of the smoke and dust removal duct 11 extends into the ground circulating water tank 13. The collection hood 15 is located directly above the ground circulating water tank 13. The top of the collection hood 15 is connected to the inlet of the dust collector 16. The outlet of the dust collector 16 is connected to the suction port of the ground fan 17 through a pipe. The exhaust port of the ground fan 17 is connected to the exhaust gas treatment device 19 through the exhaust gas discharge pipe 18.

[0039] In a preferred embodiment, the ground circulating water tank 13 is equipped with an oil scraper 22, which is used to remove the sediment at the bottom of the water tank when cleaning the ground circulating water tank.

[0040] In a preferred embodiment, a float switch 14 is installed in the ground circulating water tank 13. The float switch 14 is connected to the input terminal of the programmable controller and is used to automatically control the water level in the ground circulating water tank 13. When the water level is too low, water is automatically replenished to ensure stable operation of the system. The outlet of the exhaust gas treatment device is connected to the ground circulating water tank, realizing the recycling and reuse of spray water and saving water resources.

[0041] As a preferred implementation, the system connects to a remote control center via an Ethernet communication module. Technicians can remotely read the system's operating status, historical data, and alarm information through a host computer, enabling remote monitoring and management of the purification device and further improving its intelligence level.

[0042] An automatic purification method for forging press fumes includes the following steps: The dust concentration sensor reads the dust concentration inside the collection hood 15 in real time and sends it to the programmable controller. The programmable controller determines whether the received dust concentration reaches the preset dust removal concentration value; When the judgment result is yes, the execution components in the dust treatment unit are started to run, that is, the water pump 12, the ground fan 17, etc. are started in sequence or simultaneously to start the purification operation. When the judgment result is negative, the actuator in the dust treatment unit is not started. If the actuator in the dust treatment unit is running at this time, the actuator in the dust treatment unit is stopped.

[0043] During system operation, the dust concentration is continuously monitored, and it is determined whether the dust concentration has dropped below the preset dust removal concentration value. If so, the control system stops operating and the system enters standby mode; otherwise, it continues to operate.

[0044] Through the above process, this system achieves fully automated closed-loop control.

[0045] This invention uses a programmable logic controller (PLC) as the system's control hardware. DI represents digital input, used to receive signals from external devices, typically connected to devices such as float switch 14 and dust concentration sensors. DO represents digital output, used to control external devices such as ground fans 17, water pumps 12, and skimmers 22. AI refers to analog input, a signal with a continuous value range, typically used to read the status of dust concentration sensors. AO refers to analog output, also a signal with a continuous value, used to control devices such as speed drives or control valves. Through analog outputs, the speed of the motor or the position of the control valve can be set.

[0046] like Figure 2 As shown, the ground fan 17, water pump 12, and oil skimmer 22 are all connected to the DI terminal on one end and the DO terminal on the other. The DI terminal is used to receive the signal input from the dust concentration sensor and compare it with the preset value to determine whether the automatic dust purification system needs to be activated. When the concentration value input by the dust concentration sensor reaches the preset dust removal concentration value, the DO terminal will control the ground fan 17, water pump 12, and oil skimmer 22 to start working, thus activating the automatic dust purification system.

[0047] The specific working process of this invention is as follows: During the forging operation of the forging press, the dust concentration sensor arranged on the lower surface of the movable crossbeam 7 monitors the dust concentration inside the collection hood 15 in real time and transmits the signal back to the programmable logic controller (PLC). When the monitored dust concentration reaches the preset dust removal concentration value, the PLC first issues an instruction through the DO module to start the water pump 12 connected to the pre-spray water pipe 10. The pre-spray water pipe 10 draws water from the ground circulating water tank 13 to pre-spray the dust in the air-water mixing device 9, so as to wet and increase the weight of the dust particles. After a short period of pre-spraying (e.g., 5-10 seconds, which can be set according to actual conditions), the programmable logic controller (PLC) starts the ground fan 17 to run, creating a negative pressure in the collection hood 15 and the dust collector 16. The wetted dust is sucked into the dust collector 16 under the action of negative pressure, where most of the particles are trapped. The airflow of residual fine particles is then sucked out from the dust collector 16 and discharged through the exhaust pipe 18 to the exhaust gas treatment device 19 for further purification treatment such as water bath or adsorption.

[0048] After purification, the water will be returned to the ground-based circulating water tank 13 after sedimentation and filtration, and will continue to be used for smoke and dust purification, thus realizing the recycling of water resources.

[0049] When the detected dust concentration drops below the preset dust removal concentration value and remains stable for a period of time, the programmable logic controller (PLC) will control the ground fan 17, water pump 12 and other equipment to stop working in sequence, and the entire purification system will enter a sleep standby state until it automatically restarts when the dust concentration exceeds the standard again.

[0050] This invention features a high degree of automation and high dust removal efficiency. It can achieve real-time monitoring of dust concentration to control the system's operating status, effectively improving equipment efficiency and reducing energy consumption.

[0051] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention shall fall within the scope of the technical solution of the present invention.

Claims

1. An automatic dust purification system for forging presses, comprising a dust treatment unit, characterized in that: It also includes a dust collection unit, a programmable controller, and a dust concentration sensor. The dust collection unit includes a dust collection hood, at least one telescopic duct, and at least one dust collection pipe, with the number of telescopic ducts corresponding one-to-one with the number of dust collection pipes. The dust collection hood is installed around the bottom of the movable crossbeam of the forging press. The dust collection hood moves with the movable crossbeam and is used to collect the smoke and dust generated during the forging process. The outer duct of the telescopic duct is installed on the upper crossbeam of the forging press. The telescopic end of the telescopic duct is connected to the dust collection pipe through a spherical sealing joint. The dust collection pipe extends into the movable crossbeam and extends to the bottom end face of the movable crossbeam. The outer duct end of the telescopic duct is connected to the dust treatment unit. A dust concentration sensor is installed on the lower surface of the movable crossbeam. The input terminal of the programmable controller is connected to the dust concentration sensor to receive real-time dust concentration signals. The output terminal of the programmable controller is connected to the actuator in the dust treatment unit to control the start and stop of the actuator in the dust treatment unit according to the received signals.

2. The automatic dust purification system for forging presses according to claim 1, characterized in that: The telescopic duct includes an outer duct and an inner duct. The outer duct is installed on the upper crossbeam of the forging press, and the inner duct is sealed and expands inside the outer duct.

3. The automatic dust purification system for forging presses according to claim 2, characterized in that: The external air duct is connected to the main air duct via a connecting air duct, and the main air duct is connected to the dust and smoke treatment unit.

4. The automatic dust purification system for forging presses according to claim 3, characterized in that: A manual air valve is installed on the connecting air duct.

5. The automatic dust purification system for forging presses according to claim 1, characterized in that: The spherical sealing joint is supported on the movable crossbeam by a sliding tube support.

6. The automatic dust purification system for forging presses according to claim 1, characterized in that: The dust treatment unit includes an air-water mixing device, a pre-spray water pipe, a smoke and dust removal duct, a water pump, a ground circulating water tank, a collection hood, a dust collector, a ground fan, an exhaust gas pipe, and an exhaust gas treatment device. One end of the pre-spray water pipe is connected to the air-water mixing device, and the other end extends into the ground circulating water tank. A water pump is installed on the pre-spray water pipe, which controls the pre-spray water pipe to draw water from the ground circulating water tank for pre-spraying. The outlet of the air-water mixing device is connected to the smoke and dust removal duct, and the other end of the smoke and dust removal duct extends into the ground circulating water tank. The collection hood is located directly above the ground circulating water tank. The top of the collection hood is connected to the inlet of the dust collector. The outlet of the dust collector is connected to the suction inlet of the ground fan through a pipe. The outlet of the ground fan is connected to the exhaust gas treatment device through the exhaust gas pipe.

7. The automatic dust purification system for forging presses according to claim 6, characterized in that: The ground-level circulating water tank is equipped with an oil skimmer, which is used to remove the sediment at the bottom of the tank when cleaning it.

8. The automatic dust purification system for forging presses according to claim 6, characterized in that: A float switch is installed inside the ground circulating water tank, and the float switch is connected to the input terminal of the programmable controller for automatically controlling the water level in the ground circulating water tank; the outlet of the exhaust gas treatment device is connected to the ground circulating water tank.

9. The automatic dust purification system for forging presses according to claim 1, characterized in that: The system connects to the remote control center via an Ethernet communication module.

10. An automatic purification method for forging press fumes, implemented based on the system described in any one of claims 1 to 9, characterized in that: Includes the following processes: The dust concentration sensor reads the dust concentration inside the collection hood in real time and sends it to the programmable controller. The programmable controller determines whether the received dust concentration reaches the preset dust removal concentration value; When the judgment result is yes, the actuator in the dust treatment unit is started to run. When the judgment result is negative, the actuator in the dust treatment unit is not started. If the actuator in the dust treatment unit is running at this time, the actuator in the dust treatment unit is stopped.

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