Dust removal barrel and welding flux recovery and dust removal system thereof

Abstract

The invention discloses a dust removal barrel and a welding flux recovery dust removal system thereof, and belongs to the technical field of welding, the dust removal barrel comprises a dust removal barrel body, a filter screen is arranged in the dust removal barrel body, an air inlet, an air outlet, a dust discharge port and a vibration device for vibrating the filter screen are arranged on the dust removal barrel body, and the air inlet and the air outlet are located below and above the filter screen respectively; the dust outlet is formed in the bottom of the dust removal barrel. The welding flux recovery and dust removal system comprises a cyclone separator, a welding flux recovery pipe, negative pressure equipment and a dust removal barrel, a discharge port of the cyclone separator is communicated with the welding flux hopper, a feed port of the cyclone separator is communicated with the welding flux recovery pipe, an exhaust port of the cyclone separator is communicated with an air inlet of the dust removal barrel, and an air outlet of the dust removal barrel is communicated with the negative pressure equipment. When the filter screen needs to be cleaned, the vibration device can drive the filter screen to vibrate to shake off dust and the like attached to the filter screen, automatic dust shaking and removing are achieved, and manual cleaning of the filter screen is not needed.

Description

Technical Field

[0001] The present invention relates to the technical field of welding, and particularly to a dust removal barrel and a flux recovery and dust removal system thereof. Background Art

[0002] In welding processes such as narrow-gap submerged arc automatic welding, conventional automatic submerged arc welding, strip surfacing, and roll surfacing, the flux is conveyed from a flux tank to a flux hopper on a welding machine by low-pressure air after drying. During the welding process, the flux is continuously fed from the flux hopper to the weld seam. After the weld seam is completed, a large amount of excess flux is generated. In the known treatment methods of the inventor for the excess flux, it is usually conveyed by a flux conveying and recovery system to a cyclone separator through a flux recovery pipe with negative pressure as the power. Then, under the screening action of the cyclone separator, the flux will fall into the flux hopper, while the dust and other particles will be conveyed to the dust removal barrel through the cyclone. The other particles and dust will be filtered through a filter screen configured in the dust removal barrel. The dust-free gas after filtration is discharged from above the dust removal barrel, and the filtered particles and dust are left to be discharged from the dust discharge port at the bottom. However, due to electrostatic action, the dust and some particles of the flux will adsorb on the filter screen, blocking the gas discharge, resulting in a decrease in the air pressure of the flux conveying and recovery system and hindering normal operation. Currently, the conventional method is to manually clean the filter screen, with a low degree of automation. Summary of the Invention

[0003] The object of the present invention is to solve the above technical problems, and provide a dust removal barrel and a flux recovery and dust removal system thereof. Through a vibration device, the filter screen can be driven to vibrate, shaking off dust and the like from the filter screen, realizing automatic dust shaking and dust removal without manual cleaning of the filter screen.

[0004] To achieve the above object, the present invention provides the following solution: The present invention discloses a dust removal barrel, including a dust removal barrel body. A filter screen is provided inside the dust removal barrel body. An air inlet, an air outlet, a dust discharge port, and a vibration device for vibrating the filter screen are provided on the dust removal barrel body. The air inlet and the air outlet are respectively located below and above the filter screen, and the dust discharge port is located at the bottom of the dust removal barrel body.

[0005] Preferably, the vibration device includes a vibration rod and a vibration mechanism for driving the vibration rod to vibrate. The vibration rod extends into the dust removal barrel body and is connected to the filter screen.

[0006] Preferably, the vibration mechanism is a vibration cylinder. The vibration cylinder is installed on the top of the dust removal barrel body. The piston rod of the vibration cylinder is coaxially and fixedly connected to the vibration rod. The piston rod of the vibration cylinder is arranged vertically downward, and the vibration rod extends into the dust removal barrel body from the top.

[0007] Preferably, the interior of the dust removal barrel body is divided into a filtering chamber and a dust collection chamber that communicate with each other up and down. The air inlet and the air outlet are both communicated with the filtering chamber. The air inlet is located at the top of the filtering chamber, the air outlet is located above the connection between the filtering chamber and the dust collection chamber, and the dust discharge port is located at the bottom of the dust collection chamber.

[0008] Preferably, the bottom of the dust collection chamber is a conical bottom, the bottom end of the conical bottom is communicated with the dust discharge port, and a discharge valve is provided at the dust discharge port.

[0009] Preferably, the discharge valve is a manual discharge valve.

[0010] Preferably, the discharge valve is an electromagnetic discharge valve. The electromagnetic discharge valve is electrically connected to a discharge relay, and the discharge relay is electrically connected to a timing device.

[0011] Preferably, the discharge valve is an electromagnetic discharge valve. A material sensor is provided at a preset height in the dust collection chamber, and the material sensor is electrically connected to the electromagnetic discharge valve.

[0012] Preferably, the vibration device is electrically connected to a vibration relay, and the vibration relay is electrically connected to the timing device and the material sensor.

[0013] A flux recovery and dust removal system is also disclosed, which includes a cyclone separator, a flux recovery pipe, a negative pressure device, and the above-mentioned dust removal barrel. The discharge port of the cyclone separator is communicated with a flux hopper, the feed port of the cyclone separator is communicated with the flux recovery pipe, the exhaust port of the cyclone separator is communicated with the air inlet of the dust removal barrel, and the air outlet of the dust removal barrel is communicated with the negative pressure device.

[0014] The present invention has achieved the following technical effects compared with the prior art:

[0015] 1. In the present invention, when the filter screen needs to be cleaned, by turning on the vibration device, the vibration device can drive the filter screen to vibrate, so as to shake off the dust and the like adsorbed on the filter screen, realizing automatic dust shaking and dust removal, and eliminating the need for manual cleaning of the filter screen.

[0016] 2. In the present invention, the vibration device is electrically connected to a vibration relay, and the vibration relay is electrically connected to a timing device and a material sensor. The vibration period and vibration time can be preset through the timing device. Under the action of the timing device, the vibration relay can be regularly opened and closed, so as to regularly turn on and off the vibration device and clean the filter screen regularly. In addition, after the material sensor detects that the dust reaches the upper limit, a signal can be sent to the vibration relay to open and close the vibration relay, realizing automatic dust shaking and dust removal. Description of the Drawings

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required in the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0018] Figure 1 It is a schematic structural diagram of the flux recovery and dust removal system in the embodiment;

[0019] Figure 2 It is a schematic internal structure diagram of the dust removal barrel in the embodiment.

[0020] Explanation of reference numerals: 1. Cyclone separator; 2. Dust removal barrel body; 3. Flux hopper; 4. Flux recovery pipe; 5. Filter chamber; 6. Dust collection chamber; 7. Filter screen; 8. Air inlet; 9. Air outlet; 10. Dust discharge port; 11. Vibration cylinder; 12. Vibration rod; 13. Vibration relay; 14. Conical bottom; 15. Discharge valve; 16. Discharge relay. Detailed implementation manners

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0022] Embodiment 1

[0023] This embodiment provides a dust removal barrel, as Figures 1 to 2 shown, including a dust removal barrel body 2. One or more filter screens 7 are provided inside the dust removal barrel body 2. An air inlet 8, an air outlet 9, a dust discharge port 10 and a vibration device are provided on the dust removal barrel body 2. The air inlet 8 is located below the filter screen 7, and the air outlet 9 is located above the filter screen 7. The dust discharge port 10 is located at the bottom of the dust removal barrel body 2 and is normally closed and will only be opened when dust needs to be discharged. The vibration device is used to drive the filter screen 7 to vibrate. When it is necessary to clean the dust on the filter screen 7, only need to start the vibration device, and the vibration device can automatically drive the filter screen 7 to vibrate, shaking off dust, particulate matter, etc.

[0024] In an implementation manner, as Figures 1 to 2 shown, the vibration device includes a vibration rod 12 and a vibration mechanism. The vibration rod 12 extends into the dust removal barrel body 2 and is connected to the filter screen 7. The vibration mechanism is used to drive the vibration rod 12 to vibrate, so as to drive the filter screen 7 to vibrate accordingly.

[0025] In an implementation manner, as Figures 1 to 2As shown in the figure, the vibration mechanism is a vibration cylinder 11. The vibration cylinder 11 is installed at the top of the dust removal barrel body 2. The piston rod of the vibration cylinder 11 is fixedly connected coaxially with the vibration rod 12. The piston rod of the vibration cylinder 11 is arranged vertically downward. The vibration rod 12 extends vertically into the dust removal barrel body 2 from the top of the dust removal barrel body 2. By the piston rod of the vibration cylinder 11 telescoping up and down, the vibration rod 12 can be driven to move up and down, realizing the vibration of the filter net 7. The vibration cylinder 11 is one of a pneumatic cylinder, an electric cylinder or a hydraulic cylinder, and a pneumatic cylinder is preferred.

[0026] In one embodiment, as Figures 1 to 2 shown, the vibration mechanism can also be various reciprocating vibration mechanisms to drive the vibration rod 12 to move up and down, such as a crank connecting rod mechanism.

[0027] In one embodiment, as Figures 1 to 2 shown, the interior of the dust removal barrel body 2 is divided into a filter chamber 5 and a dust collection chamber 6 that are vertically connected. The air inlet 8 and the air outlet 9 are both connected to the filter chamber 5. The air inlet 8 is located at the top of the filter chamber 5, and the air outlet 9 is located above the connection between the filter chamber 5 and the dust collection chamber 6. The purpose of such a setting is to promote the air flow coming in from the air inlet 8 to flow directly upward, pass through the filter net 7 and be discharged from the air outlet 9, so as to avoid disturbing the dust deposited in the dust collection chamber 6 below the air inlet 8. The dust discharge port 10 is located at the bottom of the dust collection chamber 6 and is normally in a normally closed state and will only be opened when dust needs to be discharged.

[0028] In one embodiment, as Figures 1 to 2 shown, the bottom of the dust collection chamber 6 is a conical bottom 14. The bottom end of the conical bottom 14 is connected to the dust discharge port 10. The conical bottom 14 facilitates the concentrated flow of dust to the dust discharge port 10, and its inclined wall surface can reduce dust residue. A discharge valve 15 is installed at the dust discharge port 10 for controlling the opening and closing of the dust discharge port 10.

[0029] In one embodiment, as Figures 1 to 2 shown, the discharge valve 15 is a manual discharge valve and can be manually opened and closed for discharging.

[0030] In one embodiment, as Figures 1 to 2 shown, the discharge valve 15 is an electromagnetic discharge valve. The electromagnetic discharge valve is electrically connected to a discharge relay 16, and the discharge relay 16 is electrically connected to a timing device. Through the timing device, the dust discharge cycle and the dust discharge time can be preset, so as to regularly open and close the discharge relay 16, realize the regular opening and closing of the discharge valve 15, and thus regularly discharge dust.

[0031] In one embodiment, as Figures 1 to 2 shown, the discharge valve 15 is an electromagnetic discharge valve. A material sensor is provided at a preset height in the dust collection chamber 6, and the material sensor is electrically connected to the electromagnetic discharge valve. When the material sensor detects that the dust reaches the preset upper limit, the electromagnetic discharge valve automatically opens for dust discharge.

[0032] In one embodiment, as Figures 1 to 2 shown, the discharge valve 15 is electrically connected to a discharge relay 16, and the discharge relay 16 is electrically connected to a timing device. The dust discharge cycle and dust discharge time can be preset through the timing device, so as to regularly open and close the discharge relay 16, realize the regular opening and closing of the discharge valve 15, and then regularly discharge dust. The discharge valve 15 uses a solenoid valve.

[0033] In one embodiment, as Figures 1 to 2 shown, the vibration device is electrically connected to a vibration relay 13, and the vibration relay 13 is electrically connected to a timing device and a material sensor. The vibration cycle and vibration time can be preset through the timing device, and the vibration relay 13 can be regularly opened and closed under the action of the timing device, realizing the energization and power-off of the vibration device, regularly opening and closing the vibration device, and regularly cleaning the filter net 7. It is also possible to send a signal to the vibration relay 13 to open and close the vibration relay 13 after the material sensor detects that the dust reaches the upper limit.

[0034] In one embodiment, as Figures 1 to 2 shown, a garbage bag or trash can can be placed below the dust discharge port 10 to collect the dust in the dust removal bucket.

[0035] Embodiment 2

[0036] This embodiment provides a flux recovery and dust removal system, as Figures 1 to 2 shown, including a cyclone separator 1, a flux recovery pipe 4, a negative pressure device, and the dust removal bucket in Embodiment 1. The cyclone separator 1 is installed on the top of the flux hopper 3. The discharge port of the cyclone separator 1 is communicated with the flux hopper 3, the feed port of the cyclone separator 1 is communicated with the flux recovery pipe 4, the exhaust port of the cyclone separator 1 is communicated with the air inlet 8 of the dust removal bucket, and the air outlet 9 of the dust removal bucket is communicated with the negative pressure device.

[0037] Working principle:

[0038] When there is excess flux after welding is completed, start the negative pressure device, hold the flux recovery pipe 4 to suck the excess flux. The sucked flux will be sent into the cyclone separator 1. Under the screening of the cyclone separator 1, the flux will be sent into the flux hopper 3 through the discharge port, and the dust and small particle sizes will be sent into the dust removal barrel body 2 through the exhaust port of the cyclone separator 1 under the entrainment of the air flow. After being filtered by the filter net 7, the dust and small particle sizes will remain in the dust removal barrel body 2, and the filtered air flow will be discharged through the air outlet 9. Regularly open the dust discharge port 10, and the dust can be regularly cleaned. When it is necessary to clean the filter net 7, turn on the vibration device to drive the filter net 7 to vibrate, and the dust etc. can be shaken off, realizing the automatic cleaning of the filter net 7.

[0039] In the present invention, specific examples are used to illustrate the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A dust removal bucket, characterized in that: It includes a dust removal barrel body, a filter screen is arranged in the dust removal barrel body, an air inlet, an air outlet, a dust exhaust port and a vibration device for vibrating the filter screen are arranged on the dust removal barrel body, the air inlet and the air outlet are respectively located below and above the filter screen, and the dust exhaust port is located at the bottom of the dust removal barrel body.

2. A dust removal bucket according to claim 1, characterized in that: The vibration device comprises a vibration rod and a vibration mechanism for driving the vibration rod to vibrate. The vibration rod extends into the dust removal barrel and is connected to the filter screen.

3. A dust removal bucket according to claim 2, characterized in that: The vibration mechanism is a vibration cylinder, which is installed on the top of the dust removal barrel. The piston rod of the vibration cylinder is coaxially fixedly connected with the vibration rod. The piston rod of the vibration cylinder is vertically downward, and the vibration rod extends into the top of the dust removal barrel.

4. A dust removal bucket according to claim 3, characterized in that: The interior of the dust removal barrel is divided into a filter chamber and a dust collecting chamber which are connected up and down. The air inlet and the air outlet are both connected to the filter chamber. The air inlet is located at the top of the filter chamber, the air outlet is located above the connection between the filter chamber and the dust collecting chamber, and the dust exhaust port is located at the bottom of the dust collecting chamber.

5. A dust removal bucket according to claim 4, characterized in that: The bottom of the dust collecting chamber is a conical bottom, the bottom end of the conical bottom is communicated with the dust exhaust port, and the dust exhaust port is provided with a discharge valve.

6. A dust removal bucket according to claim 5, characterized in that: The discharge valve is a manual discharge valve.

7. A dust removal bucket according to claim 5, characterized in that: The discharge valve is an electromagnetic discharge valve, the electromagnetic discharge valve is electrically connected to a discharge relay, and the discharge relay is electrically connected to a timing device.

8. The dust removal bucket according to claim 5, characterized in that: The discharge valve is an electromagnetic discharge valve, and a material sensor is provided at a preset height in the dust collecting chamber, and the material sensor is electrically connected to the electromagnetic discharge valve.

9. A dust removal bucket according to claim 8, characterized in that: The vibration device is electrically connected to a vibration relay, and the vibration relay is electrically connected to the timing device and the material sensor.

10. A flux recovery and dust removal system, characterized in that: It includes a cyclone separator, a flux recovery pipe, a negative pressure device and a dust removal bucket as described in any one of claims 1 to 9, the discharge port of the cyclone separator is connected to the flux hopper, the feed port of the cyclone separator is connected to the flux recovery pipe, the exhaust port of the cyclone separator is connected to the air inlet of the dust removal bucket, and the air outlet of the dust removal bucket is connected to the negative pressure device.

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