Intelligent efficient purification system for high-temperature polishing and welding metal smoke dust

Abstract

The invention discloses a high-temperature polishing and welding metal smoke dust intelligent efficient purification system which comprises a workbench, a cyclone dust collector is arranged in the workbench, a dynamic airflow mechanism and a spiral air path cooling cleaning mechanism which are connected with the cyclone dust collector through a pipeline are arranged on the workbench, and a control assembly is further arranged on the workbench; the spiral gas path cooling and cleaning mechanism comprises a tank body, the lower end of the tank body is connected with a feeding bin, the upper end of the tank body is connected with a waste bin, the upper end of the waste bin is connected with an exhaust pipe, a spiral gas path channel is vertically arranged in the tank body, a groove is formed in the side edge of the spiral gas path channel, a cleaning filter screen is arranged in the spiral gas path channel, and the two sides of the cleaning filter screen are arranged in the groove. And a plurality of groups of sealing driving devices for driving the cleaning filter screen to spirally ascend are embedded in the spiral gas path channel. The device is simple and compact in structure, high-temperature metal smoke dust generated in the polishing and welding operation process can be subjected to multi-stage filtering and cooling treatment, efficient purification is achieved, and poisonous and harmful gas is effectively removed.

Description

Technical Field

[0001] The present invention belongs to the technical field of metal fume treatment, and particularly relates to an intelligent and efficient purification system for high-temperature grinding and welding metal fumes. Background Art

[0002] During the processes of grinding and welding, high-temperature welding fumes containing heavy metal particles and toxic and harmful gases are easily generated. Long-term exposure to such pollutants will seriously threaten the life and health of workers.

[0003] The main heavy metal particles in grinding and welding metal fumes include metal oxides (such as Fe203, Al203, etc.), Si02, Mn0, etc. generated from the ground and welded metals, among which Fe203 has the largest content; the toxic and harmful gases include C0, 03, C02, CH4, NO X etc., among which C0 accounts for the largest proportion. Basic purification of grinding and welding metal fumes can only filter out larger particles in the fumes, with low purification efficiency and poor purification effect, and it is unable to remove the toxic and harmful gases therein. Summary of the Invention

[0004] The purpose of the present invention is to provide an intelligent and efficient purification system for high-temperature grinding and welding metal fumes, which has a simple and compact structure, can achieve multi-stage filtration and cooling treatment of high-temperature metal fumes generated during the grinding and welding operations, with high-efficiency purification and effectively remove toxic and harmful gases.

[0005] To achieve the above purpose, the present invention provides an intelligent and efficient purification system for high-temperature grinding and welding metal fumes, including a workbench. A cyclone dust collector is provided inside the workbench. A grinding and welding area is provided on the workbench. A dynamic air flow mechanism and a spiral air path cooling and cleaning mechanism are provided on the workbench, which are adjacent back-to-back and are respectively connected to the cyclone dust collector through pipelines. A control component for connecting and controlling the dynamic air flow mechanism, the spiral air path cooling and cleaning mechanism, and the cyclone dust collector is also provided on the workbench;

[0006] The spiral air path cooling and cleaning mechanism includes a tank body. A feeding bin is connected to the lower end of the tank body, and a waste bin is connected to the upper end. An exhaust pipe is connected to the upper end of the material bin. A spiral air path channel is vertically arranged inside the tank body. Grooves are opened on the side of the spiral air path channel. A cleaning filter screen is arranged inside the spiral air path channel. Both sides of the cleaning filter screen are arranged in the grooves. Multiple groups of sealing driving devices for driving the cleaning filter screen to spiral upward are embedded in the spiral air path channel;

[0007] A feeding reel is installed in the feeding bin through a support I. An inlet connected to the tank body is provided at the top of the feeding bin. A waste reel is installed in the waste bin through a support II. An outlet connected to the tank body is provided at the bottom of the waste bin. Both ends of the cleaning filter screen are respectively connected to the feeding reel and the waste reel through the inlet and the outlet.

[0008] As a further solution of the present invention: The dynamic air flow mechanism semi - surrounds the grinding and welding area through baffles, including:

[0009] An air suction device, close to the spiral air path cooling and cleaning mechanism, located in front of the grinding and welding area, vertically arranged, and the lower end is connected to a cyclone dust collector through a pipeline;

[0010] A blowing device I, far from the spiral air path cooling and cleaning mechanism, located behind the grinding and welding area, embedded in the workbench;

[0011] A blowing device II, located on both sides of the grinding and welding area, embedded in the baffle plates on both sides of the dynamic air flow mechanism.

[0012] As a further solution of the present invention: The spiral air path channel is provided with a cooling sandwich pipeline. The lower end of the cooling sandwich pipeline is connected to a heat exchanger through a cooling pipeline inlet provided on the feeding bin, and the upper end of the cooling sandwich pipeline is connected to the heat exchanger through a cooling pipeline outlet provided on the waste bin. The heat exchanger is connected and arranged on the workbench.

[0013] As a further solution of the present invention: A recovery pipeline is vertically arranged at the center inside the spiral air path channel. The lower end of the recovery pipeline leads to an outlet opened in the feeding bin and is provided with a valve, and the upper end leads to a suction port opened in the waste bin.

[0014] As a further solution of the present invention: It further includes an intelligent sensing mechanism connected to the control component, including:

[0015] An air quality sensor, installed inside the waste bin;

[0016] A dust sensor I, installed on the inner surface of the baffle plate and above the blowing device II;

[0017] A dust sensor II, installed on the workbench and above the blowing device I;

[0018] A vision sensor, installed on the inner surface of the air suction device and directly above the workbench.

[0019] As a further solution of the present invention: The sealing drive device is arranged to rotate vertically at equal intervals and alternately, including a sealing rubber component and a drive roller for driving the cleaning filter screen.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] Through the synergistic effect of the air suction device and multiple groups of blowing devices, high - temperature grinding and welding metal fumes can be efficiently collected;

[0022] Through the spiral air path cooling and cleaning mechanism, heavy metal particulate matters and toxic and harmful gases can be efficiently removed by using its spiral air path channel. The spiral air path channel can extend the gas flow time, and cooperate with the cooling sandwich pipeline to fully cool the metal fumes.

[0023] The setting of the cleaning filter screen in the spiral gas path channel can effectively adsorb the toxic and harmful substances in the metal flue gas. The sealing drive device can be used to drive the replacement of the cleaning filter screen, so as to maintain the cleaning and filtering effect of the spiral gas path cooling and cleaning mechanism in real time.

[0024] The overall structure is simple and compact, which can realize the multi-stage filtration and cooling treatment of the high-temperature metal dust generated during the grinding and welding operations, with high-efficiency purification and effective removal of toxic and harmful gases. Brief Description of the Drawings

[0025] Figure 1 It is a schematic structural diagram of the intelligent and efficient purification system for high-temperature grinding and welding metal dust of the present invention;

[0026] Figure 2 It is a left-view structural diagram of the intelligent and efficient purification system for high-temperature grinding and welding metal dust of the present invention;

[0027] Figure 3 It is a rear-view perspective structural diagram of the intelligent and efficient purification system for high-temperature grinding and welding metal dust of the present invention.

[0028] Figure 4 It is a schematic structural diagram of the spiral gas path cooling and cleaning mechanism of the intelligent and efficient purification system for high-temperature grinding and welding metal dust of the present invention.

[0029] Figure 5 It is a front-view perspective view of the spiral gas flow channel of the intelligent and efficient purification system for high-temperature grinding and welding metal dust of the present invention.

[0030] Figure 6 It is a schematic diagram of the laying method of the cleaning filter screen of the intelligent and efficient purification system for high-temperature grinding and welding metal dust of the present invention.

[0031] Figure 7 It is a schematic structural diagram of the double-layer linkage blade aperture air valve of the intelligent and efficient purification system for high-temperature grinding and welding metal dust of the present invention.

[0032] Figure 8 It is a top-view structural diagram of the double-layer linkage blade aperture air valve of the intelligent and efficient purification system for high-temperature grinding and welding metal dust of the present invention.

[0033] Figure 9 It is a schematic structural diagram of the driving blade of the double-layer linkage blade aperture air valve of the intelligent and efficient purification system for high-temperature grinding and welding metal dust of the present invention.

[0034] Figure 10 It is a schematic structural diagram of the driven blade of the double-layer linkage blade aperture air valve of the intelligent and efficient purification system for high-temperature grinding and welding metal dust of the present invention.

[0035] In the figure, 1 is a dynamic air flow mechanism, 11 is an air suction device, 12 is a blowing device I, 121 is a multi-angle deflector, 13 is a blowing device II, and 14 is a baffle;

[0036] 2 is a cyclone dust collector, and 21 is a dust collection bin;

[0037] 3 is a spiral air path cooling and cleaning mechanism, 301 is a tank body, 302 is a feeding bin, 303 is a waste bin, 304 is an exhaust pipe, 305 is a feeding reel, 306 is a cleaning filter screen, 307 is a feeding port, 308 is chamber I, 309 is chamber II, 310 is a discharging port, 311 is a waste reel, 312 is a support I, 313 is a support II, 314 is a heat exchanger, 315 is a cooling pipe inlet; 316 is a cooling pipe outlet, and 317 is a waste filter screen;

[0038] 4 is a workbench;

[0039] 5 is a sub-controller;

[0040] 6 is a main controller, 61 is a dust sensor I, 62 is a dust sensor II, 63 is a vision sensor, and 64 is an air quality sensor;

[0041] 7 is a double-layer linkage blade aperture air valve, 71 is a driving blade, 711 is a linkage block, 72 is a driven blade, and 721 is a linkage groove;

[0042] 8 is a spiral air path channel, 81 is a groove, 82 is a sealing drive device, 821 is a sealing rubber component, 822 is a driving roller, and 83 is a cooling sandwich pipe;

[0043] 9 is a recovery pipe, 91 is an outlet, 92 is a valve, and 93 is a suction port. Detailed implementation mode

[0044] The present invention will be further described below through embodiments.

[0045] As Figure 1 shown, a high-temperature grinding and welding metal fume intelligent and efficient purification system includes a workbench 4. A cyclone dust collector 2 is provided inside the workbench 4. A grinding and welding area is provided on the workbench 4. A dynamic air flow mechanism 1 and a spiral air path cooling and cleaning mechanism 3, which are adjacent back to back and are respectively connected to the cyclone dust collector 2 through pipes, are provided on the workbench 4. A control component for connecting and controlling the dynamic air flow mechanism 1, the spiral air path cooling and cleaning mechanism 3, and the cyclone dust collector 2 is also provided on the workbench 4;

[0046] The control component includes a main controller 6 provided on the outer sidewall of the spiral gas path cooling and cleaning mechanism 3 and a sub-controller 5 provided on the workbench 4. The main controller 6 analyzes the soot properties and distribution for different workpieces and different grinding and welding processes, and then establishes a model and sets a specific airflow state for it; The sub-controller 5 can be provided with quick buttons for the operator to flexibly switch the working mode;

[0047] Figures 4 to 6 As shown in the figure, the spiral gas path cooling and cleaning mechanism 3 includes a tank body 301. The lower end of the tank body 301 is connected to a feeding bin 302, the upper end is connected to a waste bin 303, the upper end of the material bin is connected to an exhaust pipe 304. A spiral gas path channel 8 is vertically arranged in the tank body 301. A groove 81 is opened on the side of the spiral gas path channel 8. A cleaning filter screen 306 is arranged in the spiral gas path channel 8. Both sides of the cleaning filter screen 306 are arranged in the groove 81. Multiple groups of sealing driving devices 82 for driving the cleaning filter screen 306 to spiral upward are embedded in the spiral gas path channel 8;

[0048] In the feeding bin 302, a feeding reel 305 is installed through a support I 312. An inlet 307 communicating with the tank body 301 is provided at the top of the feeding bin 302. In the waste bin 303, a waste reel 311 is installed through a support II 313. An outlet 310 communicating with the tank body 301 is provided at the bottom of the waste bin 303. Both ends of the cleaning filter screen 306 are respectively connected to the feeding reel 305 and the waste reel 311 through the inlet 307 and the outlet 310.

[0049] The cleaning filter screen 306 enters the chamber I 308 at the bottom of the tank body 301 through the inlet 307, is laid in the spiral gas path channel 8 by the sealing driving device 82, and is restricted in the groove 81 on both sides;

[0050] The cleaning filter screen 306 spirally ascends along the spiral gas path channel 8, enters the chamber II 309 at the top of the tank body 301, and is wound into the waste reel 311 in the waste bin 303 through the outlet 310.

[0051] The control panel of the main controller 6 displays the remaining replacement times of the cleaning filter screen 306 provided by the feeding reel 305; When the remaining replacement times are less than 1, the control panel of the main controller 6 displays a strong reminder to replenish the filter screen.

[0052] Furthermore, as shown in Figure 1 and Figure 2 the figure, the dynamic airflow mechanism 1 semi-surrounds the grinding and welding area through a baffle 14, including:

[0053] An air suction device 11, close to the spiral gas path cooling and cleaning mechanism 3, located in front of the grinding and welding area, vertically arranged, and the lower end is connected to a cyclone dust collector 2 through a pipeline; As shown in Figures 7 to 10As shown in the figure, a double-layer linkage vane aperture air valve 7 is installed on the inner surface of the air suction device 11 and is controlled by a control component. The double-layer linkage vane aperture air valve 7 includes a driving vane 71 and a driven vane 72. A linkage block 711 protruding downward is provided at the bottom of the driving vane 71, and a linkage groove 721 recessed downward is provided at the top of the driven vane 72. The linkage block 711 and the linkage groove 721 cooperate to realize the synchronous opening and closing of the driving vane 71 and the driven vane 72.

[0054] The blowing device I 12 is far away from the spiral air path cooling and cleaning mechanism 3, is located behind the grinding and welding area, and is embedded in the workbench 4.

[0055] The blowing device II 13 is located on both sides of the grinding and welding area and is embedded in the two side baffles 14 of the dynamic air flow mechanism 1. The surface of the baffle 14 is provided with multi-angle diversion plates 121 for docking with the blowing device II 13, which are connected and controlled by a control component to ensure the maximization of the dust capture efficiency.

[0056] During operation, the air suction device 11 sucks dust, and the blowing device I 12 and the blowing device II 13 blow clean air flow to form an enclosed air flow field, directing the high-temperature grinding and welding metal dust into the cyclone dust collector 2.

[0057] Furthermore, as Figures 3 to 6 shown, the spiral air path channel 8 is provided with a cooling interlayer pipe 83. The lower end of the cooling interlayer pipe 83 is connected to the heat exchanger 314 through a cooling pipe inlet 315 provided on the feeding bin 302, and the upper end of the cooling interlayer pipe 83 is connected to the heat exchanger 314 through a cooling pipe outlet 316 provided on the waste bin 303. The heat exchanger 314 is connected and installed on the workbench 4.

[0058] The heat exchanger 314 injects coolant into the cooling interlayer pipe 83 through a pipe. The coolant flows upward along the cooling interlayer pipe 83 to ensure that the high-temperature grinding and welding metal dust is quickly cooled when entering the spiral air path channel 8, avoiding damage to the cleaning filter screen 306 due to high temperature.

[0059] The coolant circulation path is: heat exchanger 314 → feeding bin 302 → chamber I 308 → cooling interlayer pipe 83 → chamber II 309 → waste bin 303 → heat exchanger 314.

[0060] Furthermore, as Figure 4 shown, a recovery pipe 9 is vertically arranged at the center inside the spiral air path channel 8. The lower end of the recovery pipe 9 leads to an outlet 91 opened in the feeding bin 302 and is provided with a valve 92, and the upper end leads to a suction port 93 opened in the waste bin 303. The main controller 6 controls the valve 92 to open, and the dust generated when replacing the cleaning filter screen 306 is re-introduced into the chamber I 308 through the recovery pipe 9 for secondary treatment.

[0061] Further, it also includes an intelligent sensing mechanism connected to the control component, such as Figure 1 , Figure 2 and Figure 4 shown, including:

[0062] An air quality sensor 64, installed inside the waste bin 303; used to detect the emissions in the waste bin 303;

[0063] A dust sensor I 61, installed on the inner surface of the baffle 14 and above the blowing device II 13; used to monitor the dust concentration at the current location;

[0064] A dust sensor II 62, installed on the workbench 4 and above the blowing device I 12; used to monitor the dust concentration at the current location;

[0065] A vision sensor 63, installed on the inner surface of the suction device 11 and directly above the workbench 4; scans the soot distribution directly above the workbench 4.

[0066] After the main controller 6 receives the signals from these sensors, it analyzes the concentration distribution of high-temperature grinding and welding metal soot, and then controls the opening size of the double-layer linkage blade aperture air valve 7, the rotation angle of the multi-angle deflector 121, and the blowing air volume of the dynamic air flow mechanism 1 in real time.

[0067] Further, as Figure 5 and Figure 6 shown, the sealing drive device 82 is arranged to reverse vertically at equal intervals and alternately, including a sealing rubber component 821 and a drive roller 822 for driving the cleaning filter 306.

[0068] The operation method during the implementation of the present invention is as follows:

[0069] S1, after the grinding and welding work starts, as the metal soot on the workbench 4 continuously diffuses and the concentration continuously increases, the dust sensor I 61 and the dust sensor II 62 detect the dust. After the main controller 6 receives their signals, it controls the dynamic air flow mechanism 1, the cyclone dust collector 2, and the spiral air path cooling and cleaning mechanism 3 to start;

[0070] The active blade 71 drives the driven blade 72 to rotate a certain angle, the double-layer linkage blade aperture air valve 7 opens a certain size, the suction device 11 sucks the high-temperature grinding and welding metal soot towards the grinding and welding area; the multi-angle deflector 121 rotates a certain angle, and the blowing device I 12 and the blowing device II 13 blow fresh air towards the grinding and welding area; under the combined action of blowing and suction, the high-temperature grinding and welding metal soot enters the inside of the suction device 11 and is sent to the cyclone dust collector 2 through the pipeline;

[0071] The heat exchanger 314 enters the interior of the feed bin 302 through a pipeline from the cooling pipeline inlet 315, and injects coolant into the cooling sandwich pipeline 83 to pre-cool the spiral gas path channel 8; the coolant spirally ascends from bottom to top along the cooling sandwich pipeline 83, and finally comes out through a pipeline from the cooling pipeline outlet 316 and is sent back to the heat exchanger 314 to achieve circulating cooling;

[0072] S2. After the high-temperature grinding and welding metal fumes are preliminarily treated by the cyclone dust collector 2, most of the dust is collected by the dust collection bin 21 of the cyclone dust collector 2, and the remaining small amount of fine dust and toxic and harmful gases enter the chamber I 308 at the bottom of the tank body 301 through a pipeline;

[0073] S3. The high-temperature grinding and welding metal fumes with dust preliminarily removed enter the spiral gas path channel 8 and spirally ascend from bottom to top along the spiral gas path channel 8, and the clean air flow processed by the clean filter screen 306 in the spiral gas path channel 8 enters the exhaust pipe 304 for discharge;

[0074] S4. When the air quality sensor 64 detects that the air flow processed in the waste bin 303 does not meet the discharge requirements, it means that the cleaning ability of the clean filter screen is insufficient and a new filter screen needs to be replaced;

[0075] After receiving its signal, the main controller 6 controls the feeding reel 305, the driving roller 822, and the waste reel 311 to start, drives the new clean filter screen 306 to enter the spiral gas path channel 8, and winds the used waste filter screen 317 onto the waste reel 311 for collection; controls the valve 92 of the recovery pipeline 9 to open, and the suction port 93 at the upper end starts to suck the dust and toxic and harmful gases generated by the waste filter screen 317 during the replacement process of the waste filter screen 317, transports them downward through the recovery pipeline 9, and finally enters the chamber I 308 through the outlet 91 at the lower end to wait to re-enter the spiral gas path channel 8 for cleaning and filtering;

[0076] When the new clean filter screen 306 is completely laid, the main controller 6 controls the feeding reel 305, the driving roller 822, the waste reel 311, and the valve 92 to close.

Claims

1. An intelligent and efficient purification system for high-temperature grinding and welding metal smoke, comprising a workbench (4), a cyclone dust collector (2) is arranged inside the workbench (4), and a grinding and welding area is arranged on the workbench (4), characterized in that: A dynamic airflow mechanism (1) and a spiral air path cooling and cleaning mechanism (3) are provided on the workbench (4) and are adjacent to each other back to back and are respectively connected to the cyclone dust collector (2) through pipelines. A control component for connecting and controlling the dynamic airflow mechanism (1), the spiral air path cooling and cleaning mechanism (3) and the cyclone dust collector (2) is also provided on the workbench (4); The spiral air path cooling and cleaning mechanism (3) comprises a tank body (301), the lower end of the tank body (301) is connected to a material supply bin (302), the upper end is connected to a waste bin (303), the upper end of the material bin is connected to an exhaust pipe (304), a spiral air path channel (8) is vertically arranged in the tank body (301), a groove (81) is provided on the side of the spiral air path channel (8), a cleaning filter (306) is arranged in the spiral air path channel (8), both sides of the cleaning filter (306) are arranged in the groove (81), and a plurality of sealing drive devices (82) for driving the cleaning filter (306) to spirally ascend are embedded in the spiral air path channel (8); A feed reel (305) is installed in the feed bin (302) via a support I (312); a feed port (307) communicating with the tank body (301) is provided at the top of the feed bin (302); a waste reel (311) is installed in the waste bin (303) via a support II (313); a discharge port (310) communicating with the tank body (301) is provided at the bottom of the waste bin (303); and two ends of the cleaning filter (306) are connected to the feed reel (305) and the waste reel (311) respectively via the feed port (307) and the discharge port (310).

2. According to claim 1, a high-temperature grinding and welding metal fume intelligent and efficient purification system is characterized in that: The dynamic airflow mechanism (1) semi-encloses the grinding and welding area through a baffle (14), and includes: The air suction device (11) is located near the spiral gas path cooling and cleaning mechanism (3), in front of the grinding and welding area, arranged vertically, and the lower end is connected to the cyclone dust collector (2) through a pipeline; The blowing device I (12) is located away from the spiral gas path cooling and cleaning mechanism (3), behind the grinding and welding area, and embedded in the workbench (4); The blowing device II (13) is located on both sides of the grinding and welding area and is embedded in the baffles (14) on both sides of the dynamic airflow mechanism (1).

3. The intelligent and efficient purification system for high-temperature grinding and welding metal smoke according to claim 1 or 2, characterized in that: The spiral gas path channel (8) is provided with a cooling interlayer pipe (83), the lower end of the cooling interlayer pipe (83) is connected to the heat exchanger (314) through a cooling pipe inlet (315) provided on the feed bin (302), and the upper end of the cooling interlayer pipe (83) is connected to the heat exchanger (314) through a cooling pipe outlet (316) provided on the waste bin (303), and the heat exchanger (314) is connected to the workbench (4).

4. According to claim 3, a high-temperature grinding and welding metal fume intelligent and efficient purification system is characterized in that: A recovery pipe (9) is vertically arranged in the center of the spiral air passage (8). The lower end of the recovery pipe (9) leads to the feed bin (302) and is provided with an outlet (91) and a valve (92). The upper end of the recovery pipe (9) leads to the waste bin (303) and is provided with a suction port (93).

5. According to claim 3, a high-temperature grinding and welding metal fume intelligent and efficient purification system is characterized in that: Also included is an intelligent sensing mechanism connected to the control component, including: An air quality sensor (64) is installed in the waste bin (303); A dust sensor I (61) is mounted on the inner surface of the baffle (14) and is located above the blowing device II (13); A dust sensor II (62) is installed on the workbench (4) and is located above the blowing device I (12); The visual sensor (63) is installed on the inner surface of the air suction device (11) and is located directly above the workbench (4).

6. According to claim 3, a high-temperature grinding and welding metal fume intelligent and efficient purification system is characterized in that: The sealing drive device (82) is arranged equidistantly and alternately in vertical reversal, and comprises a sealing rubber component (821) and a driving roller (822) for driving the cleaning filter (306).

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