CN116726646A - Dust removal system for welding workshop - Google Patents
Dust removal system for welding workshop Download PDFInfo
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- CN116726646A CN116726646A CN202310866151.4A CN202310866151A CN116726646A CN 116726646 A CN116726646 A CN 116726646A CN 202310866151 A CN202310866151 A CN 202310866151A CN 116726646 A CN116726646 A CN 116726646A
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- dust removing
- removing device
- dust
- air outlet
- dust removal
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- 239000000428 dust Substances 0.000 title claims abstract description 137
- 238000003466 welding Methods 0.000 title claims abstract description 21
- 239000007921 spray Substances 0.000 claims description 41
- 238000004140 cleaning Methods 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 238000004065 wastewater treatment Methods 0.000 claims description 8
- 239000012528 membrane Substances 0.000 claims description 6
- 239000002351 wastewater Substances 0.000 claims description 6
- 239000003595 mist Substances 0.000 claims description 5
- 238000011084 recovery Methods 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 4
- 238000001179 sorption measurement Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 abstract description 23
- 239000003496 welding fume Substances 0.000 abstract description 10
- 239000000779 smoke Substances 0.000 description 24
- 238000001514 detection method Methods 0.000 description 10
- 238000012360 testing method Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a dust removing system for a welding workshop, which comprises a first dust removing device and a second dust removing device which are arranged in pairs; the first air inlet of the first dust removing device is arranged at the top of the first dust removing device, and the first air outlet is arranged at the central position of the first dust removing device; the second air inlet of the second dust removing device is arranged at the center of the second dust removing device, and the second air outlet is arranged at the top of the second dust removing device; the first air inlet and the second air outlet are positioned at the same horizontal height, and the first air outlet and the second air inlet are positioned at the same horizontal height; when the dust removing system is operated, air flow circulation can be formed between the first dust removing device and the second dust removing device. Two dust removal devices are matched to form air flow circulation in a dust removal target area, welding fume particles can be removed rapidly and efficiently, welding personnel are ensured to be in a healthy and environment-friendly working environment, and secondary pollution to the environment outside a workshop is avoided.
Description
Technical Field
The invention belongs to the technical field of industrial dust removal, and particularly relates to a dust removal system for a welding workshop.
Background
In the field of industrial manufacturing, a welding process is a very important processing means, and is a manufacturing process and technology combining metal or other thermoplastic materials in a manner of heating, high temperature or high pressure.
The welding operation usually generates a large amount of welding fume, under the action of high-temperature electric arc, the end part of the welding rod and the base metal thereof are melted, the surface of molten liquid is vigorously sprayed with high-temperature and high-pressure steam generated by a coating and a welding core and is diffused to the periphery, when the steam enters the surrounding air, the steam is immediately cooled and oxidized, and partial solid particles are condensed, and the mixture of gas and solid particles is the welding fume. The particle size of the smoke dust is smaller, the smoke dust particles with the particle size of 0.3-1 μm account for more than 99.75% of all the particles, and the smoke dust particles are gathered and distributed in a space with the particle size of 1-3 meters from the ground. If the welding fume is not treated in time, the welding fume can fly in a workshop, and the workshop environment is deteriorated and even the condition of smoke in the workshop is caused to be around along with the continuous welding operation. Such conditions can cause significant injury to the body of the worker.
The existing treatment mode mainly comprises the step of leading the smoke dust out of a workshop or arranging a plurality of dust collectors which are independently operated. However, by arranging a fan and a blower at the top of the workshop, the speed of guiding welding fume outdoors is not high, and secondary pollution is easily caused to the external environment; and a plurality of dust collectors which are independently operated are selected, so that the dust collection efficiency is limited, and the air quality in a welding workshop is still poor.
Disclosure of Invention
In view of the above problems, the invention provides a dust removing system for a welding workshop, which comprises two dust removing devices used in a matched manner, and forms air flow circulation during operation, so that the dust removing efficiency of a target area is greatly improved.
In order to achieve the technical effects, the invention adopts the following technical scheme:
the dust removing system for the welding workshop is characterized by comprising a first dust removing device and a second dust removing device which are arranged in pairs; the first air inlet of the first dust removing device is arranged at the top of the first dust removing device, and the first air outlet is arranged at the central position of the first dust removing device; the second air inlet of the second dust removing device is arranged at the center of the second dust removing device, and the second air outlet is arranged at the top of the second dust removing device; the first air inlet and the second air outlet are positioned at the same horizontal height, and the first air outlet and the second air inlet are positioned at the same horizontal height.
In some embodiments, a filter cavity is arranged in the first dust removing device, and a filter element is arranged in the filter cavity; the first air inlet is communicated with the filter cavity through a connecting hose, and the inner cavity of the filter element is communicated with the first air outlet.
In some embodiments, a secondary filter box is further arranged between the filter element and the first air outlet, and a PE unidirectional filter membrane is arranged in the secondary filter box.
In some embodiments, a pair of motor rails are vertically mounted within the filter chamber, and two linear motors can move up and down along the motor rails; a connecting rod is arranged between the two linear motors, and a cleaning brush is connected to the connecting rod; the brush head of the cleaning brush is abutted against the surface of the filter element, so that dust condensed on the surface of the filter element can be brushed off.
In some embodiments, a high-frequency vibration motor is further arranged on the connecting rod, and the high-frequency vibration motor can drive the cleaning brush to vibrate the filter element.
In some embodiments, a spray tank is arranged in the second dust removing device, the second air inlet is communicated with the bottom of the spray tank, and the second air outlet is connected with the top of the spray tank through a connecting hose.
In some embodiments, a swirl plate and a spray header are arranged in the spray tank, and the swirl plate is arranged above the spray header; the spray header is communicated with an air pump and a water pump which are arranged outside the second dust removing device through pipelines, and can spray superfine water mist.
In some embodiments, the bottom of the spray tank is also provided with a wastewater recovery tank which is communicated with a wastewater treatment tank arranged outside the second dust removing device; the water after adsorption filtration in the wastewater treatment tank can be sprayed out of the spray header again through the water pump.
In some embodiments, a secondary filter box is further arranged between the spray tank and the second air outlet, and a PE unidirectional filter membrane is arranged in the secondary filter box.
The beneficial effects of the invention are as follows:
two dust removal devices are matched to form air flow circulation in a dust removal target area, welding fume particles can be removed rapidly and efficiently, welding personnel are ensured to be in a healthy and environment-friendly working environment, and secondary pollution to the environment outside a workshop is avoided.
Drawings
FIG. 1 is a schematic overall arrangement of one embodiment of the present invention;
FIG. 2 is an internal construction view of a first dust removing device according to an embodiment of the present invention;
FIG. 3 is a block diagram of a filter cartridge cleaning device in a first dust extraction device according to one embodiment of the invention;
FIG. 4 is a block diagram of a second dust collector according to an embodiment of the present invention;
FIG. 5 is a side view in the direction A-A of FIG. 4;
FIG. 6 is a graph of smoke detection results prior to a dust removal operation in a welding shop;
FIG. 7 is a graph of data of smoke detection results after a first dust collector is turned on alone in an embodiment of the invention;
FIG. 8 is a graph of the smoke detection result data after the second dust collector is turned on alone in the embodiment of the invention;
FIG. 9 is a graph of smoke detection results prior to a double machine test in a weld shop;
fig. 10 is a graph of smoke detection results after a double machine test in a welding shop.
In the figures 1-5 of the drawings,
100 first dust collector, 110 first air inlet, 120 first air outlet, 130 filter element, 141 motor guide rail, 142 linear motor, 143 connecting rod, 144 cleaning brush, 145 high-frequency vibration motor, 146 dust collecting box;
200 second dust collector, 210 second air inlet, 220 second air outlet, 231 spray tank, 232 swirl plate, 233 spray header, 234 air pump, 235 water pump, 236 waste water recovery tank, 237 waste water treatment tank;
3 secondary filter boxes and 4 centrifugal fans.
Detailed Description
The technical scheme of the invention is further described below with reference to the accompanying drawings.
As shown in fig. 1, the dust removing system for a welding shop includes a first dust removing device 100 and a second dust removing device 200 provided in pairs; the first air inlet 110 of the first dust removing device 100 is arranged at the top of the first dust removing device, and the first air outlet 120 is arranged at the central position of the first dust removing device 100; the second air inlet 210 of the second dust removing device 200 is arranged at the central position thereof, and the second air outlet 220 is arranged at the top of the second dust removing device 200;
the first air inlet 110 and the second air outlet 220 are positioned at the same horizontal level, and are about 3 meters away from the ground; the first air outlet 120 and the second air inlet 210 are positioned at the same horizontal level and are about 1.3 meters away from the ground; when the dust removing system operates, under the action of air inlet and air exhaust of the two devices, the target area (between the first dust removing device 100 and the second dust removing device 200) forms integral air flow circulation movement, so that the smoke dust concentration in a welding workshop can be greatly reduced, and the air quality in the workshop can be effectively improved.
As shown in fig. 2 to 3, the first dust removing device 100 is a filter cartridge dust removing device that filters and purifies welding fume mainly through an inner filter cartridge 130. Specifically, a filter cavity is arranged in the first dust removal device 100, and a filter element 130 is arranged in the filter cavity; the first air inlet 110 is communicated with the filter cavity through a connecting hose, and the inner cavity of the filter element 130 is communicated with the first air outlet 120. A secondary filter box 3 is also arranged between the filter element 130 and the first air outlet 120, and a PE unidirectional filter membrane is arranged in the secondary filter box 3. The first dust collector 100 is also provided with a centrifugal fan 4, and the centrifugal fan 4 is connected with the shell outlet of the secondary filter box 3 through a large-caliber hose.
When the dust removing system works, the centrifugal fan 4 performs air suction action, external air is sucked into the filter cavity from the first air inlet 110 and then passes through the filter element 130, enters the secondary filter box 3 from the inner cavity of the filter element 130, and finally is discharged from the first air outlet 120. The smoke particles in the air are filtered while passing through the filter cartridge 130 and the secondary filter cartridge 3, thereby achieving a purifying effect.
In order to remove dust condensed on the outer surface of the filter element 130, to improve the filtering effect of the filter element 130, a cleaning device is further disposed in the first dust removing device 100, and mainly includes a cleaning brush 144 and a vibration device.
As shown in fig. 3, a pair of motor guide rails 141 are vertically installed in the filter chamber of the first dust removing apparatus 100, and a linear motor 142 is provided on each motor guide rail 141 to move up and down along the motor guide rails; the two linear motors 142 are always kept at the same horizontal height, a connecting rod 143 is arranged between the two linear motors, and a cleaning brush 144 is connected to the connecting rod 143; the cleaning brush 144 has a circular ring structure, and the brush head on the inner side abuts against the surface of the filter element 130. Thus, when the linear motor 142 is controlled to move up and down, the cleaning brush 144 is also moved, and dust condensed on the surface of the filter cartridge 130 is brushed off by the brush head.
The vibration device is a high-frequency vibration motor 145 arranged on the connecting rod 143, and the high-frequency vibration motor 145 can drive the cleaning brush 144 to generate vibration action on the filter element 130. Some dust has stronger adhesive force and is difficult to remove only by the cleaning brush 144, at the moment, the high-frequency vibration motor 145 can be started, high-frequency vibration is transmitted to the filter element 130 through the cleaning brush 144, dust adsorbed on the surface of the filter element 130 is shaken off, the vibration time can be automatically adjusted according to the requirement, and the cleaning brush 144 is controlled to clean up and down after the vibration is finished; after the above process is repeated a plurality of times, the surface of the filter element 130 can be cleaned efficiently.
A dust box 146 is also provided below the filter cartridge 130 in the filter chamber for collecting dust cleaned from the surface of the filter cartridge 130. The dust box 146 can be installed at the bottom of the filter cavity by adopting a drawer-like design, and when the dust removing system is in standby, an operator can withdraw the dust box 146 from the first dust removing device to uniformly treat dust accumulated in the dust box 146.
As shown in fig. 4 to 5, the second dust removing device 200 is a spray dust removing device, which filters and purifies welding fume mainly by an internal spray mechanism. Specifically, the second dust collector 200 is provided with a spray tank 231, the second air inlet 210 is connected to the bottom of the spray tank 231, and the second air outlet 220 is connected to the top of the spray tank 231 through a connection hose. A swirl plate 232 and a spray header 233 are arranged in the spray tank 231, and the swirl plate 232 is arranged above the spray header 233; the shower head 233 is connected to an air pump 234 and a water pump 235 provided outside the second dust collector 200 through pipes, and can spray ultra-fine water mist. A secondary filter box 3 is also arranged between the spray tank 231 and the second air outlet 220, and a PE unidirectional filter membrane is arranged in the secondary filter box 3. The second dust removing device 200 is also internally provided with a centrifugal fan 4, and the centrifugal fan 4 is connected with the shell outlet of the secondary filter box 3 through a large-caliber hose.
When the dust removing system works, the centrifugal fan 4 performs air suction, external air is pumped into the spray tank 231 from the second air inlet 210, the spray header 233 sprays ultrafine water mist downwards, the ultrafine water mist and large particulate matters in the smoke are combined into water drops and then fall into the lower wastewater recycling box 236, and the cleaned gas passes through the secondary filter box 3 and is finally discharged from the second air outlet 220, so that the purifying effect is realized.
The outer part of the second dust removing device 200 is also provided with a wastewater treatment tank 237, and a wastewater recovery tank 236 at the bottom of the spray tank 231 is communicated with the wastewater treatment tank 237; the water after adsorption filtration in the wastewater treatment tank 237 can be sprayed out of the spray header 233 again through the water pump 235, so that the spray water can be recycled.
Dust removal effect test
The dust removal system of the previous embodiment is installed in a welding shop.
Before the test, the dust removal system was on standby, and in-situ smoke detection was performed in the welding shop, and the measurement results are shown in fig. 6. In the figure, the X axis is the particle size of the smoke particles, and the Y axis is the number of the smoke particles with the corresponding particle size in each cubic meter of space. From the data, it can be seen that the specific gravity of welding fume of 0.3 micron is the largest, and the specific gravity of dust of 0.3 micron to 1 micron is more than 99.75%.
(1) Single machine test of first dust collector (filter core dust collection)
After the site is restored to the conventional smoke environment before the test, the first dust removing device is independently started, and during the working process, an AERO TRAK 9306-V2 smoke particle tester is used for sampling and measuring at an air inlet and an air outlet of the first dust removing device respectively, wherein the detection result is shown in figure 7, and the Y axis is the number of smoke particles in each cubic meter of space. As can be seen from the data in the figure, the first dust collector has obvious effect of absorbing 0.3 micron dust particles, and the removal rate is close to 80%.
(2) Single machine test of second dust collector (spray dust collector)
After the site is restored to the conventional smoke environment before the test, the second dust removing device is independently started, and during the working process, an AERO TRAK 9306-V2 smoke particle tester is used for sampling and measuring at an air inlet and an air outlet of the second dust removing device respectively, wherein the detection result is shown in figure 8, and the Y axis is the number of smoke particles in each cubic meter of space. From the data in the figure, the second dust removing device has obvious effect of absorbing the dust particles with the size of 0.3 microns, and the removal rate is more than 50%.
(3) Dual machine (forming a gas flow cycle) test
After the site is restored to the conventional smoke environment before the test, a PC-3A (S) laser inhalable dust continuous tester is used for sampling and measuring the whole workshop environment, and the detection result is shown in figure 9. And simultaneously starting the first dust removing device and the second dust removing device, and after the operation is performed for half an hour, sampling and measuring are performed at the same position, and the detection result is shown in fig. 10. The data in the graph show that the dust removal system forming the air flow circulation can obviously reduce the content of smoke dust particles in a workshop, and the removal rate of the particles reaches 96.2%.
It will be apparent to those skilled in the art that various modifications to the above embodiments may be made without departing from the general spirit and concepts of the invention. Which fall within the scope of the present invention. The protection scheme of the invention is subject to the appended claims.
Claims (9)
1. The dust removing system for the welding workshop is characterized by comprising a first dust removing device and a second dust removing device which are arranged in pairs;
the first air inlet of the first dust removing device is arranged at the top of the first dust removing device, and the first air outlet is arranged at the central position of the first dust removing device;
the second air inlet of the second dust removing device is arranged at the center of the second dust removing device, and the second air outlet is arranged at the top of the second dust removing device;
the first air inlet and the second air outlet are positioned at the same horizontal height, and the first air outlet and the second air inlet are positioned at the same horizontal height; when the dust removing system is operated, air flow circulation can be formed between the first dust removing device and the second dust removing device.
2. The dust removal system of claim 1, wherein a filter chamber is provided in the first dust removal device, and a filter element is installed in the filter chamber; the first air inlet is communicated with the filter cavity through a connecting hose, and the inner cavity of the filter element is communicated with the first air outlet.
3. The dust removal system of claim 2, wherein a secondary filter box is further provided between the filter element and the first air outlet, and a PE unidirectional filter membrane is provided in the secondary filter box.
4. The dust removal system of claim 2, wherein a pair of motor rails are vertically mounted within the filter chamber, and wherein the two linear motors are movable up and down along the motor rails; a connecting rod is arranged between the two linear motors, and a cleaning brush is connected to the connecting rod; the brush head of the cleaning brush is abutted against the surface of the filter element, so that dust condensed on the surface of the filter element can be brushed off.
5. The dust removal system of claim 4, wherein the connecting rod is further provided with a high-frequency vibration motor capable of driving the cleaning brush to vibrate the filter element.
6. The dust removal system of claim 1, wherein a spray tank is disposed in the second dust removal device, the second air inlet is connected to the bottom of the spray tank, and the second air outlet is connected to the top of the spray tank through a connecting hose.
7. The dust removal system of claim 6, wherein a swirl plate and a spray header are provided in the spray tank, the swirl plate being disposed above the spray header; the spray header is communicated with an air pump and a water pump which are arranged outside the second dust removing device through pipelines, and can spray superfine water mist.
8. The dust removal system of claim 7, wherein the bottom of the spray tank is further provided with a wastewater recovery tank, the wastewater recovery tank being in communication with a wastewater treatment tank disposed outside the second dust removal device; the water after adsorption filtration in the wastewater treatment tank can be sprayed out of the spray header again through the water pump.
9. The dust removal system of claim 6, wherein a secondary filter box is further arranged between the spray tank and the second air outlet, and a PE unidirectional filter membrane is arranged in the secondary filter box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310866151.4A CN116726646A (en) | 2023-07-13 | 2023-07-13 | Dust removal system for welding workshop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310866151.4A CN116726646A (en) | 2023-07-13 | 2023-07-13 | Dust removal system for welding workshop |
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| Publication Number | Publication Date |
|---|---|
| CN116726646A true CN116726646A (en) | 2023-09-12 |
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ID=87918621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310866151.4A Pending CN116726646A (en) | 2023-07-13 | 2023-07-13 | Dust removal system for welding workshop |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106824964A (en) * | 2017-03-20 | 2017-06-13 | 威尔登环保设备（长沙）有限公司 | Blowing and drawing type dust pelletizing system |
| CN206295712U (en) * | 2016-12-07 | 2017-07-04 | 北京中冶蓝天科技有限公司 | Travelling cleaner |
| CN208373731U (en) * | 2018-05-18 | 2019-01-15 | 京东方科技集团股份有限公司 | A kind of Airshower chamber |
| US20210339182A1 (en) * | 2018-10-26 | 2021-11-04 | Zhejiang Hongsheng New Material Technology Group Co., Ltd | Modularized dust collector system and control method thereof |
| CN218475062U (en) * | 2022-11-18 | 2023-02-14 | 无锡市东方环境工程设计研究所有限公司 | Synergistic liquid membrane filtration composite cyclone centrifugal dust removal device |
-
2023
- 2023-07-13 CN CN202310866151.4A patent/CN116726646A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206295712U (en) * | 2016-12-07 | 2017-07-04 | 北京中冶蓝天科技有限公司 | Travelling cleaner |
| CN106824964A (en) * | 2017-03-20 | 2017-06-13 | 威尔登环保设备（长沙）有限公司 | Blowing and drawing type dust pelletizing system |
| CN208373731U (en) * | 2018-05-18 | 2019-01-15 | 京东方科技集团股份有限公司 | A kind of Airshower chamber |
| US20210339182A1 (en) * | 2018-10-26 | 2021-11-04 | Zhejiang Hongsheng New Material Technology Group Co., Ltd | Modularized dust collector system and control method thereof |
| CN218475062U (en) * | 2022-11-18 | 2023-02-14 | 无锡市东方环境工程设计研究所有限公司 | Synergistic liquid membrane filtration composite cyclone centrifugal dust removal device |
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