CN115318018A - Workshop raise dust adsorption device and method - Google Patents
Workshop raise dust adsorption device and method Download PDFInfo
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- CN115318018A CN115318018A CN202211056628.4A CN202211056628A CN115318018A CN 115318018 A CN115318018 A CN 115318018A CN 202211056628 A CN202211056628 A CN 202211056628A CN 115318018 A CN115318018 A CN 115318018A
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- 239000000428 dust Substances 0.000 title claims abstract description 165
- 238000001179 sorption measurement Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 238000010521 absorption reaction Methods 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 5
- 230000006872 improvement Effects 0.000 abstract description 2
- 238000002156 mixing Methods 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000011882 ultra-fine particle Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
- B01D46/442—Auxiliary equipment or operation thereof controlling filtration by measuring the concentration of particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
- B01D46/446—Auxiliary equipment or operation thereof controlling filtration by pressure measuring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/04—Cleaning by suction, with or without auxiliary action
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a workshop raise dust adsorption device and a method, belonging to the technical field of dust collection, and comprising an exhaust hood, wherein the exhaust hood is connected with a dust collection mechanism, the dust collection mechanism comprises a telescopic pipeline connected with the exhaust hood, and the telescopic pipeline is connected with a bag-type dust collector through an exhaust pipe; the blade group is fixedly arranged in the exhaust pipe, connected with the blade group motor and driven by the blade group motor to rotate for dust collection. The device can solve among the prior art and at the raise dust pollution to the mixing plant workshop process of unloading to and the relatively poor and great problem of system power consumption of raise dust treatment effect, can be according to dust concentration adaptability adjustment dust absorption mode, can carry out timely effectual improvement to the raise dust.
Description
Technical Field
The invention belongs to the technical field of dust collection, and particularly relates to a workshop raise dust adsorption device and method.
Background
The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.
In the stirring station link of unloading, can produce a large amount of dusts in the workshop of unloading, when the transport vechicle dumps the grit material, because of inertia induction, tiny dust very easily causes the raise dust pollution along with the induced air current is raised. Due to the short unloading time, the large fall and the interference of external factors such as hot pressing, transverse airflow and the like, the dust pollution generated in the unloading process is very serious.
At present, the treatment mode aiming at the raised dust of the dust removal loading room is mainly negative-pressure mechanical air draft dust removal, the method has good catching effect on coarse dust and fine dust, but can not effectively treat inhalable and ultrafine particle dust, the dust removal effect is mostly dependent on the power of negative-pressure air draft, and the raised dust treatment effect is poor; in addition, at present, a high-power negative pressure dust suction device is mainly used for dust suction, and no matter how high the dust concentration is, a high-power fan is directly used for dust removal, so that the energy consumption is very high; moreover, the suction opening adopts a round opening, the design is unreasonable, even if the power of the negative pressure dust suction device is very high, the negative pressure dust suction device cannot play a good effect, the dust concentration in a workshop is too high, the operation of workers is influenced, the working efficiency is reduced, and the negative effect on the health state of the workers is also realized.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a workshop raise dust adsorption device and a method, the device can solve the problems of raise dust pollution in the unloading process of a mixing plant workshop, poor raise dust treatment effect and large system energy consumption in the prior art, can adjust the dust collection mode according to the dust concentration adaptability, and can effectively treat the raise dust in time.
In order to achieve the purpose, the invention is realized by the following technical scheme:
in a first aspect, the invention provides a workshop raise dust adsorption device, which comprises an exhaust hood, wherein the exhaust hood is connected with a dust collection mechanism, the dust collection mechanism comprises a telescopic pipeline connected with the exhaust hood, and the telescopic pipeline is connected with a bag-type dust collector through an exhaust pipe; the blade group is fixedly arranged in the exhaust pipe, connected with the blade group motor and driven by the blade group motor to rotate for dust collection.
As a further technical scheme, the end part of the exhaust pipe is connected with an exhaust fan to be used as a forming source of a negative pressure environment; the tail end of the exhaust fan is communicated with the bag-type dust collector.
As a further technical scheme, the blade group fan and the exhaust fan are electrically connected with a relay, and the relay is electrically connected with a control system.
As a further technical scheme, the exhaust hood is in a frustum pyramid shape, and the expansion angle of the top of the exhaust hood is 30-45 degrees; the exhaust hood is arranged at the top of the workshop.
As a further technical scheme, the telescopic pipeline is connected with the control system and vertically arranged, and is controlled to extend downwards during dust collection operation, so that the exhaust hood is lowered to reach a preset position.
As a further technical scheme, the blade group is fixed on the exhaust pipe through an annular steel frame; the diameter of the blade group is half of that of the exhaust pipe.
As a further technical scheme, the control system is connected with a pressure sensor, and the pressure sensor is installed on a road between the vehicles and used for detecting whether the transport vehicle enters a preset unloading position or not.
As a further technical scheme, the control system is connected with a dust concentration detector, and the dust concentration detector is installed in a workshop and used for detecting the dust concentration in the workshop and in an exhaust pipeline.
As a further technical scheme, the control system is connected with a wind speed detector, and the wind speed detector is arranged at the mouth of the exhaust pipe to measure the real-time wind speed; the control system is also connected with the LED display screen.
In a second aspect, the invention also provides a dust collection method of the workshop raise dust adsorption device, which comprises the following steps:
when the dust concentration is higher than the minimum threshold value and lower than the maximum value, the blade group motor drives the blade group to rotate so as to carry out primary dust collection;
when the dust concentration exceeds the maximum value, the exhaust fan is controlled to deeply absorb dust, and meanwhile, the blade group motor is started to drive the blade group to rotate to absorb dust in an auxiliary manner;
collecting raised dust from the exhaust hood, collecting the raised dust to the exhaust pipe in a centralized manner, and collecting the raised dust by using a bag-type dust collector;
and when the dust concentration is lower than the minimum threshold value, the exhaust fan and the blade group motor are controlled to be closed, and the telescopic pipeline is controlled to return to the initial position.
The beneficial effects of the invention are as follows:
the workshop dust adsorption device can effectively solve the problem of low efficiency in the dust pollution treatment process in the prior art; through the arrangement of the blade group in the exhaust pipe, when the dust concentration is not high, the blade group motor is started, the blade group motor drives the blade group to perform dust collection operation, the rotating speed is adjusted according to the dust concentration, the blade group rotates to generate negative pressure and suck air, and dust in the exhaust hood is guided to enter a dust collection pipeline; through the connection of the exhaust pipe and the exhaust fan, when the dust concentration is at a preset maximum value, the control system opens the exhaust fan through a relay to perform deep dust collection, and simultaneously starts a blade group motor to drive a blade group to rotate to perform auxiliary dust collection; at the moment, the blade group rotates to form negative pressure, so that the flow speed of air is accelerated, the suction force is enhanced, and the dust collection efficiency is improved; the dust collection mode can be adjusted according to the dust concentration adaptability, raised dust can be effectively treated in time, and the energy consumption is reduced due to the adjustment mode of the adaptability.
According to the workshop flying dust adsorption device, the blade group motor, the telescopic pipeline and the exhaust fan are controlled by the control system, and the real-time monitoring system is combined, so that intelligent feedback and automatic control are realized, the problem of environmental pollution caused by flying dust is solved more stably, energy is saved, and the environment is protected.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a schematic view of a plant fugitive dust adsorption apparatus according to one or more embodiments of the invention;
in the figure: the mutual spacing or size is exaggerated to show the position of each part, and the schematic diagram is only used for illustration;
wherein, 1-an exhaust hood, 2-a telescopic pipeline, 3-a blade group, 4-a blade group motor, 5-an annular steel frame, 6-an exhaust pipe, 7-an exhaust fan and 8-a bag-type dust remover, 9-a control system, 10-a relay, 11-a pressure sensor, 12-a wind speed detector, 13-a dust concentration detector and 14-an LED display screen.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
In a typical embodiment of the present invention, as shown in fig. 1, a workshop dust adsorption device is provided, which includes an exhaust hood 1, a dust suction mechanism and a control system 9.
Wherein, the exhaust hood 1 is in a frustum pyramid shape, the longitudinal section of the exhaust hood is trapezoidal, the upper part is narrow and the lower part is wide, the expansion angle of the top part is 30 degrees to 45 degrees, namely the included angle between the two side walls of the upper opening of the exhaust hood is 30 degrees to 45 degrees; exhaust hood 1 sets up in the workshop top, compares in traditional column exhaust hood, and the raise dust collects efficiency higher.
Connect dust absorption mechanism on the exhaust hood 1, dust absorption mechanism includes flexible pipeline 2, fan and exhaust pipe 6, and flexible pipeline 2 bottoms link to each other with exhaust hood 1, the vertical setting of flexible pipeline, and flexible pipeline 2 extends downwards during the dust absorption operation, reduces exhaust hood 1 and reachs preset position, effectively restraines the raise dust by the induced air current generation, avoids the interference of horizontal air current, helps improving dust collection efficiency. Dust enters the system under the action of adsorption along the exhaust hood 1, moves along the dust collection mechanism under the guide of micro negative pressure generated by air flow, the telescopic pipeline 2 is connected with the bag-type dust collector 8 through the exhaust pipe 6, and the bag-type dust collector is located outdoors and used for filtering and collecting dust.
The telescopic pipeline 2 is electrically connected with a relay 10, the upper end of the telescopic pipeline is connected with an exhaust pipe 6, the telescopic pipeline can be controlled to be telescopic through a control system, the prior art is adopted, and the details are not repeated; a blade group 3 and a blade group motor 4 are arranged in the exhaust pipe 6, the blade group and the blade group motor are fixed by welding an annular steel frame 5, and a plurality of bolt holes are formed in the periphery of the annular steel frame 5 and are correspondingly arranged and fixed with holes in the inner wall of the exhaust pipe 6; the blade group 3 is connected with a blade group motor 4, and the blade group motor 4 drives the blade group 3 to operate. The diameter of the blade group 3 is about half of the diameter of the exhaust pipe.
The other side of the exhaust pipe 6 is provided with one or more exhaust fans 7 which can be used as a forming source of a negative pressure environment; the blade group fan 4 and the exhaust fan 7 are both electrically connected with a relay 10, and the relay 10 is electrically connected with a control system 9; the tail end of the exhaust fan 7 is communicated with an outdoor bag-type dust collector 8.
When the dust concentration is not high, the control system 9 starts the blade group motor 4 through a relay, the blade group motor 4 drives the blade group 3 to perform dust collection operation, the rotating speed is adjusted according to the dust concentration, negative pressure is generated in the pipeline and airflow is formed when the blade group rotates, and dust in the exhaust hood is guided to enter a dust collection pipeline; when the dust concentration exceeds the preset maximum value, the control system opens the exhaust fan 7 through a relay to perform negative pressure air suction for deep dust collection, when the exhaust fan 7 is started, negative pressure is generated in the exhaust pipe and air suction is performed, and meanwhile, the blade group motor 4 is started to drive the blade group 3 to rotate for auxiliary dust collection; the exhaust fan forms a negative pressure source, the fan set plays a role of air supply, an air path channel can be formed by combining the exhaust fan and the fan set, the blade set rotates, the flow speed of air extraction is increased, and therefore the air suction efficiency is increased, namely the air suction strength is enhanced.
The combined use of the fan set and the exhaust fan forms a channel, so that the dust collection efficiency is improved; and according to the selective wind gas group and the exhaust fan of opening of dust concentration, it is more intelligent, also reduce the energy consumption.
The input end of the control system 9 is connected with the pressure sensor 11, the wind speed detector 12 and the dust concentration detector 13 through circuits, the output end of the control system is connected with a relay 10 through circuits, and the output end of the relay 10 is connected with the telescopic pipeline 2, the blade group motor 4, the exhaust fan 7 and the LED display screen 14 through circuits so as to achieve the purpose of intelligent control; when the control system detects that the dust concentration reaches a set threshold value through the dust concentration detector 13, the control system automatically starts the blade group motor 4 or the exhaust fan 7 to perform dust collection operation according to the concentration through the relay 10.
The pressure sensor 11 is installed on a road between the vehicles to detect whether the transporting vehicle enters a predetermined discharging position. When the transport vehicle enters the unloading position, the pressure sensor is activated to transmit a signal to the control system, and the control system controls the telescopic pipeline to reach a preset position through the relay; when the dust concentration detected by the dust concentration detector is lower than the threshold value, the control system controls the telescopic pipeline to reach the initial position through the relay.
The dust concentration detector 13 is arranged in a workshop and can detect the dust concentration in the workshop and the exhaust pipeline; when the dust concentration detected by the dust concentration detector is higher than a preset minimum threshold and lower than a preset maximum value, the dust concentration detector feeds back a signal to the control system, and the control system turns on a blade group motor through a relay to drive a blade group to rotate for dust collection; when the dust concentration detector detects the preset maximum value of the dust concentration, the signal is fed back to the control system, the control system opens the exhaust fan through the relay to carry out deep dust collection, and simultaneously drives the blade group to rotate under the action of the exhaust fan to carry out auxiliary dust collection.
The wind speed detector 12 is arranged at the pipe orifice of the exhaust pipe 6 and can measure the real-time wind speed.
The specific working process of the workshop raise dust adsorption device comprises the following steps:
when a transport truck enters a workshop and runs to a preset position along a road, a pressure sensor 11 is activated, a signal is transmitted to a control system 9 along a circuit, the system controls a telescopic pipeline 2 to extend to the preset position through a relay 10, when the dust concentration detected by a dust concentration detector 13 is higher than a preset minimum threshold value and lower than a preset maximum value, the dust concentration detector 13 feeds the signal back to the control system 9, and the control system 9 turns on a blade group motor 4 through the relay 10 to drive a blade group 3 to rotate so as to perform preliminary dust collection; when the dust concentration detected by the dust concentration detector 13 exceeds the preset maximum value, a signal is fed back to the control system 9, the control system 9 turns on the exhaust fan 7 through the relay 10 to perform deep dust collection, and meanwhile, the blade group motor 4 is started to drive the blade group 3 to rotate to perform auxiliary dust collection. The generated dust can be collected from the exhaust hood 1, and is collected into the exhaust pipe 6, and the dust is collected by the bag-type dust collector 8.
Data such as dust concentration and real-time wind speed in the workshop can be fed back to the LED display screen 14 through the control system 9. When the control system 9 monitors that the dust concentration is lower than the preset minimum threshold value through the dust concentration detector 13, the exhaust fan 7 and the blade group motor are controlled to be turned off through the relay 10, and the telescopic pipeline 2 is controlled to return to the initial position.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A workshop raise dust adsorption device is characterized by comprising an exhaust hood, wherein the exhaust hood is connected with a dust collection mechanism, the dust collection mechanism comprises a telescopic pipeline connected with the exhaust hood, and the telescopic pipeline is connected with a bag-type dust collector through an exhaust pipe; the blade group is fixedly arranged in the exhaust pipe, connected with the blade group motor and driven by the blade group motor to rotate for dust collection.
2. The dust adsorption apparatus of claim 1, wherein the end of said exhaust pipe is connected to an exhaust fan as a source of negative pressure; the tail end of the exhaust fan is communicated with the bag-type dust collector.
3. The workshop dust adsorption device of claim 2 wherein the blade set fan and the exhaust fan are electrically connected to a relay, and the relay is electrically connected to a control system.
4. The dust adsorption device of the workshop as claimed in claim 1, wherein the exhaust hood is in a shape of a frustum of a pyramid, and the expansion angle of the top of the exhaust hood is 30-45 degrees; the exhaust hood is arranged at the top of the workshop.
5. The dust absorption device for workshop as claimed in claim 1, wherein the telescopic pipe is connected with the control system, the telescopic pipe is vertically arranged, and the telescopic pipe is controlled to extend downwards during dust absorption operation, so that the exhaust hood is lowered to reach a preset position.
6. The workshop dust adsorption device of claim 1 wherein said blade assembly is fixed to the exhaust duct by an annular steel frame; the diameter of the blade group is half of that of the exhaust pipe.
7. The vehicle fugitive dust adsorption apparatus of claim 1, wherein the control system is connected to a pressure sensor, the pressure sensor being mounted on a road of the vehicle to detect whether the transport vehicle enters a predetermined discharge position.
8. The dust adsorption plant of claim 1, wherein said control system is connected to a dust concentration detector, said dust concentration detector being installed in said plant for detecting the dust concentration in said plant and in said exhaust duct.
9. The workshop fugitive dust adsorption device of claim 1, wherein the control system is connected to an air velocity detector, the air velocity detector is installed at the mouth of the exhaust duct to measure the real-time air velocity; the control system is also connected with the LED display screen.
10. The dust collection method of the workshop fugitive dust adsorption device according to any one of claims 1 to 9, comprising the steps of:
when the dust concentration is higher than the minimum threshold value and lower than the maximum value, the blade group motor drives the blade group to rotate so as to carry out primary dust collection;
when the dust concentration exceeds the maximum value, the exhaust fan is controlled to deeply suck dust, and meanwhile, the blade group motor is started to drive the blade group to rotate to suck dust in an auxiliary manner;
collecting raised dust from the exhaust hood, collecting the raised dust to the exhaust pipe in a centralized manner, and collecting the raised dust by using a bag-type dust collector;
and when the dust concentration is lower than the minimum threshold value, the exhaust fan and the blade group motor are controlled to be closed, and the telescopic pipeline is controlled to return to the initial position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211056628.4A CN115318018A (en) | 2022-08-30 | 2022-08-30 | Workshop raise dust adsorption device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211056628.4A CN115318018A (en) | 2022-08-30 | 2022-08-30 | Workshop raise dust adsorption device and method |
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| Publication Number | Publication Date |
|---|---|
| CN115318018A true CN115318018A (en) | 2022-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211056628.4A Pending CN115318018A (en) | 2022-08-30 | 2022-08-30 | Workshop raise dust adsorption device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117564054A (en) * | 2023-10-27 | 2024-02-20 | 北京科技大学 | Device suitable for dust treatment of building site |
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| CN205287908U (en) * | 2015-12-28 | 2016-06-08 | 广东百强陶瓷有限公司 | Press cloth vehicle dust pelletizing system |
| CN108971180A (en) * | 2018-08-05 | 2018-12-11 | 刁书才 | Intelligent dedusting system and dust removal method |
| CN212608300U (en) * | 2020-07-03 | 2021-02-26 | 华电重工股份有限公司 | Dust removal system for stock yard |
| WO2021258803A1 (en) * | 2020-06-24 | 2021-12-30 | 湖州南丰机械制造有限公司 | Dust treatment system for casting workshop |
| CN216703651U (en) * | 2021-12-22 | 2022-06-10 | 山东华学环保科技有限公司 | Dust explosion-proof bag-type dust collector |
-
2022
- 2022-08-30 CN CN202211056628.4A patent/CN115318018A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205287908U (en) * | 2015-12-28 | 2016-06-08 | 广东百强陶瓷有限公司 | Press cloth vehicle dust pelletizing system |
| CN108971180A (en) * | 2018-08-05 | 2018-12-11 | 刁书才 | Intelligent dedusting system and dust removal method |
| WO2021258803A1 (en) * | 2020-06-24 | 2021-12-30 | 湖州南丰机械制造有限公司 | Dust treatment system for casting workshop |
| CN212608300U (en) * | 2020-07-03 | 2021-02-26 | 华电重工股份有限公司 | Dust removal system for stock yard |
| CN216703651U (en) * | 2021-12-22 | 2022-06-10 | 山东华学环保科技有限公司 | Dust explosion-proof bag-type dust collector |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117564054A (en) * | 2023-10-27 | 2024-02-20 | 北京科技大学 | Device suitable for dust treatment of building site |
| CN117564054B (en) * | 2023-10-27 | 2024-05-17 | 北京科技大学 | Device suitable for dust treatment of building site |
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