CN111359362B - Workshop dust treatment device - Google Patents
Workshop dust treatment device Download PDFInfo
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- CN111359362B CN111359362B CN202010347514.XA CN202010347514A CN111359362B CN 111359362 B CN111359362 B CN 111359362B CN 202010347514 A CN202010347514 A CN 202010347514A CN 111359362 B CN111359362 B CN 111359362B
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- 239000000428 dust Substances 0.000 title claims abstract description 68
- 239000003054 catalyst Substances 0.000 claims abstract description 29
- 230000033228 biological regulation Effects 0.000 claims abstract description 5
- 230000017525 heat dissipation Effects 0.000 claims description 37
- 238000010521 absorption reaction Methods 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 239000000969 carrier Substances 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 230000002146 bilateral effect Effects 0.000 claims description 2
- 238000001914 filtration Methods 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The invention relates to the technical field of workshop dust gas treatment, in particular to a workshop dust treatment device, which comprises a treatment device main body, wherein the treatment device main body consists of an air inlet pipe, a dust treatment pipe and an exhaust pipe, the upper end of the dust treatment pipe is communicated with the air inlet pipe, the lower end of the dust treatment pipe is communicated with the exhaust pipe, and the workshop dust treatment device has the beneficial effects that: according to the invention, the electromagnetic valve and the flow guide pipeline are added, so that the effect of fully shunting is realized according to the air dust concentration of the air inlet pipe, and the blockage of a filtering flow channel caused by the reduction of the dust filtering treatment efficiency due to a single flow channel is avoided; through setting up horizontal and vertical runner, increased the area of contact of catalyst carrier with the air, improved dust disposal's efficiency greatly, the regulation support of cooperation motor control simultaneously realizes shunting inner chamber and horizontal runner's intercommunication, further improves the reaction efficiency between dust gas and the catalyst carrier.
Description
Technical Field
The invention relates to the technical field of workshop dust gas treatment, in particular to a workshop dust treatment device.
Background
With the development of manufacturing industry, more and more processing workshops are provided, and the air in the workshops needs to be treated in time for the health of processing personnel.
For the patent numbers: the CN201910287107.1 energy-saving and environment-friendly air pollution treatment device realizes timely heat dissipation and uniform shunting in the treatment process through the heat dissipation and through hole devices, but the operation power of the treatment device is different due to different dust generated in the workshop processing process, the device cannot be adapted to treatment of different dust concentrations, and meanwhile, in the full-power treatment process, the purpose of sufficient heat dissipation cannot be realized through a single heat dissipation plate.
Therefore, the workshop dust treatment device is provided to solve the problems of adaptation and adjustment of different treatment efficiencies.
Disclosure of Invention
The invention aims to provide a workshop dust treatment device to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a workshop dust treatment device comprises a treatment device body, wherein the treatment device body is composed of an air inlet pipe, a dust treatment pipe and an exhaust pipe, the upper end of the dust treatment pipe is communicated with the air inlet pipe, the lower end of the dust treatment pipe is communicated with the exhaust pipe, an electromagnetic control valve is arranged at the position, connected with the air inlet pipe, of the upper end of an inner cavity of the dust treatment pipe, a top plate is fixedly welded on the inner wall of the upper end of the dust treatment pipe, the lower end of the electromagnetic control valve is communicated with a top plate, the upper end of the electromagnetic control valve is communicated with the air inlet pipe, a group of mutually symmetrical catalyst carriers are arranged on the left side and the right side of the lower end of the top plate, a shunting main pipe is installed in the middle of the top plate in an inserting mode, a longitudinal flow passage and a transverse flow passage which are staggered in a vertical mode are arranged in the inner cavity of the catalyst carriers, a heat dissipation inner cavity is arranged between the outer side of the catalyst carriers and the inner wall of the middle section of the dust treatment pipe, and a filter screen is arranged at the lower end of the catalyst carriers, the filter screen is fixedly installed on the inner wall of the lower end of the shunting main pipe, the longitudinal flow passage and the transverse flow passage are mutually and vertically communicated, the upper end of the longitudinal flow passage is communicated with a gas interface at the upper end of the top plate, the inner cavity of the shunting main pipe is provided with a shunting inner cavity, the outer wall of the middle section of the shunting main pipe is provided with a plurality of first through holes which are linearly distributed, third through holes are arranged between the first through holes which are adjacent at intervals, the third through holes and the transverse flow passage are superposed one by one, three adjusting brackets which are linearly distributed are installed on the inner cavity of the shunting inner cavity, the three adjusting brackets are all fixedly installed on the outer wall of the rotating shaft, the adjusting brackets are correspondingly installed at the positions of the third through holes, second through holes are arranged at the positions of the adjusting brackets corresponding to the third through holes, the upper end of the rotating shaft is rotatably connected with a driving motor, and a heat dissipation plate is arranged between the heat dissipation inner cavity and a catalyst carrier, the inside of heat dissipation inner chamber is provided with the heat absorption pipe of intercommunication each other, and the upper and lower both sides outer wall of heat dissipation inner chamber is provided with water inlet and outlet respectively.
Preferably, the position that the upper end outer wall of dust handling pipe and intake-tube connection are provided with the thermoelectric power supply, and the lower extreme of dust handling pipe and the outer wall of blast pipe hookup location are provided with gas detector.
Preferably, the upper ends of the left side and the right side of the main shunting pipe and the top plate are respectively provided with a gas interface, the electromagnetic control valve is a four-way electromagnetic valve, and the lower end of the electromagnetic control valve is respectively communicated with the gas interfaces on the main shunting pipe and the top plate through three linearly distributed flow guide pipelines.
Preferably, the upper end of the main shunt pipe is connected with the top plate in a sealing mode through a sealing gasket, the lower end of the main shunt pipe is provided with a sealing bottom plate, and the sealing bottom plate is fixedly installed on the lower end face of the filter screen through four screws distributed in a circumferential array mode.
Preferably, the upper end inner chamber that the reposition of redundant personnel was responsible for is provided with a pair of splitter box of bilateral symmetry, the upper end intercommunication reposition of redundant personnel of splitter box is responsible for the gas connector, the lower extreme intercommunication reposition of redundant personnel inner chamber of splitter box.
Preferably, the inner wall of the upper end of the shunting inner cavity is provided with an installation inner cavity, and the upper end of the driving motor is fixedly installed on the inner wall of the installation inner cavity.
Preferably, the heat dissipation plate is tightly attached to the outer side of the catalyst carrier, an opening communicated with the transverse flow channel is formed in the heat dissipation plate, and the transverse flow channel is communicated with the heat dissipation inner cavity through the opening.
Preferably, the heat absorption pipe is composed of pipelines which are mutually communicated and distributed in a circumferential array, liquid interfaces are arranged at the head end and the tail end of the heat absorption pipe, and a pair of liquid interfaces which are distributed in an up-and-down symmetrical mode are respectively communicated with the water inlet and the water outlet.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the electromagnetic valve and the flow guide pipeline are added, so that the effect of fully shunting is realized according to the air dust concentration of the air inlet pipe, and the blockage of a filtering flow channel caused by the reduction of the dust filtering treatment efficiency due to a single flow channel is avoided;
2. the invention increases the contact area of the catalyst carrier and the air by arranging the transverse flow channel and the longitudinal flow channel, greatly improves the dust treatment efficiency, and simultaneously realizes the communication between the shunting inner cavity and the transverse flow channel by matching with the adjusting bracket controlled by the motor, thereby further improving the reaction efficiency between the dust gas and the catalyst carrier;
3. the invention realizes the purpose of double heat dissipation by arranging the matching of the heat dissipation plate and the heat absorption pipe, improves the heat dissipation efficiency by matching the water cooling heat absorption with the heat transfer of the heat dissipation plate, and avoids local overheating caused by dust treatment reaction.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1;
FIG. 3 is an enlarged view of the structure at B in FIG. 1;
FIG. 4 is a schematic perspective view of the main shunt tube of the present invention;
FIG. 5 is a perspective view of an adjustment bracket according to the present invention;
fig. 6 is a schematic perspective view of the heat absorbing tube of the present invention.
In the figure: 1. an air inlet pipe; 2. an exhaust pipe; 3. a dust handling pipe; 4. an electromagnetic control valve; 5. a temperature difference power supply; 6. a diversion pipeline; 7. a catalyst support; 8. a top plate; 9. a main flow distribution pipe; 10. a heat dissipation inner cavity; 11. a water inlet; 12. a heat absorbing tube; 13. a heat dissipation plate; 14. a water outlet; 15. filtering with a screen; 16. a screw; 17. a gas detector; 18. a longitudinal flow passage; 19. a transverse flow passage; 20. a drive motor; 21. a rotating shaft; 22. a sealing gasket; 23. a shunt slot; 24. a shunt lumen; 25. a first through hole; 26. installing an inner cavity; 27. a second through hole; 28. a third through hole; 29. adjusting bracket, 30, gas interface; 31. sealing the bottom plate; 32. a fluid interface.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 6, the present invention provides a technical solution:
the utility model provides a device is administered to workshop dust, is including administering the device main part, administers the device main part and comprises intake pipe 1, dust treatment pipe 3 and blast pipe 2, and the lower extreme intercommunication blast pipe 2 of dust treatment pipe 3, the lower extreme of dust treatment pipe 3 and the outer wall of 2 hookup location of blast pipe are provided with gas detector 17, utilize gas detector 17 to realize the detection to handling back air dust content, realize discharge to reach standard.
The upper end intercommunication intake pipe 1 of dust processing pipe 3, the position that the inner chamber upper end of dust processing pipe 3 and intake pipe 1 are connected is provided with solenoid electric valve 4, and the position that the upper end outer wall of dust processing pipe 3 and intake pipe 1 are connected is provided with thermoelectric power supply 5, utilizes thermoelectric power supply 5 to supply power for solenoid electric valve 4.
The inner wall of the upper end of the dust treatment pipe 3 is fixedly welded with a top plate 8, the lower end of the electromagnetic control valve 4 is communicated with the top plate 8, a shunt main pipe 9 is installed in the middle of the top plate 8 in an inserted mode, the upper end of the shunt main pipe 9 is connected with the top plate 8 in a sealing mode through a sealing washer 22, the lower end of the shunt main pipe 9 is provided with a sealing bottom plate 31, the sealing bottom plate 31 is fixedly installed on the lower end face of the filter screen 15 through four screws 16 distributed in a circumferential array mode, and the sealing bottom plate 31 and the screws 16 are matched to achieve fixed installation of the shunt main pipe 9.
The upper end of the electromagnetic control valve 4 is communicated with the air inlet pipe 1, the left side and the right side of the lower end of the top plate 8 are provided with a group of catalyst carriers 7 which are symmetrical to each other, the upper ends of the left side and the right side of the flow dividing main pipe 9 and the top plate 8 are both provided with air interfaces 30, the electromagnetic control valve 4 is a four-way electromagnetic valve, the lower end of the electromagnetic control valve 4 is respectively communicated with the air interfaces 30 on the flow dividing main pipe 9 and the top plate 8 through three flow guiding pipelines 6 which are linearly distributed, and the dust airflow is divided by utilizing the three flow guiding pipelines 6 which are linearly distributed.
The upper end inner cavity of the main diversion pipe 9 is provided with a pair of diversion grooves 23 which are bilaterally symmetrical, the upper ends of the diversion grooves 23 are communicated with the gas interface 30 of the main diversion pipe 9, the lower ends of the diversion grooves 23 are communicated with the diversion inner cavity 24, and the diversion grooves 23 are utilized to realize the communication between the gas inlet pipe 1 and the diversion inner cavity 24.
The inner cavity of the shunting main pipe 9 is provided with a shunting inner cavity 24, the outer wall of the middle section of the shunting main pipe 9 is provided with a plurality of first through holes 25 which are distributed linearly, and the dust airflow in the shunting inner cavity 24 is input into the inner cavity of the catalyst carrier 7 by utilizing the first through holes 25.
The inner cavity of the catalyst carrier 7 is provided with longitudinal runners 18 and transverse runners 19 which are criss-cross, third through holes 28 are arranged between the first through holes 25 which are adjacent at intervals, the third through holes 28 and the transverse runners 19 are overlapped one by one, and the third through holes 28 are utilized to increase the contact area of the dust airflow and the catalyst carrier 7, thereby achieving the purpose of improving the treatment efficiency.
Three regulation support 29 of linear distribution is installed to reposition of redundant personnel inner chamber 24's inner chamber, the equal fixed mounting of three regulation support 29 of linear distribution is at the outer wall of pivot 21, adjust the position at third through-hole 28 that support 29 corresponds, second through-hole 27 has been seted up with the position that third through-hole 28 corresponds to regulation support 29, pivot 21's upper end is rotated and is connected driving motor 20, reposition of redundant personnel inner chamber 24's upper end inner wall is provided with installation inner chamber 26, driving motor 20's upper end fixed mounting is at installation inner chamber 26 inner chamber, utilize the rotation of driving motor 20 control pivot 21, and then the control of intercommunication between second through-hole 27 and the third through-hole 28 is realized.
The lower end of the catalyst carrier 7 is provided with a filter screen 15, the filter screen 15 is fixedly installed on the inner wall of the lower end of the main flow dividing pipe 9, and the filter screen 15 is used for discharging airflow and carrying out final filtration.
The upper end of the longitudinal flow channel 18 is communicated with the gas interface 30 at the upper end of the top plate 8, the longitudinal flow channel 18 and the transverse flow channel 19 are mutually and vertically communicated, and the treatment efficiency is further improved by utilizing the connection between the longitudinal flow channel 18 and the top plate 8.
A heat dissipation inner cavity 10 is arranged between the outer side of the catalyst carrier 7 and the inner wall of the middle section of the dust treatment pipe 3, a heat dissipation plate 13 is arranged between the heat dissipation inner cavity 10 and the catalyst carrier 7, the heat dissipation plate 13 is tightly attached to the outer side of the catalyst carrier 7, an opening communicated with the transverse flow channel 19 is formed in the heat dissipation plate 13, the transverse flow channel 19 is communicated with the heat dissipation inner cavity 10 through the opening, the purpose of fully dissipating heat during low-power operation is achieved by means of the heat dissipation plate 13, and meanwhile, dust gas is temporarily stored through the opening.
The heat dissipation inner chamber 10 is internally provided with mutually communicated heat absorption pipes 12, the outer walls of the upper side and the lower side of the heat dissipation inner chamber 10 are respectively provided with a water inlet 11 and a water outlet 14, the heat absorption pipes 12 are formed by mutually communicated pipelines distributed in a circumferential array, the head end and the tail end of each heat absorption pipe 12 are respectively provided with a liquid interface 32, a pair of liquid interfaces 32 which are symmetrically distributed up and down are respectively communicated with the water inlet 11 and the water outlet 14, the heat absorption pipes 12 are utilized to realize the high-power operation process, and heat is taken away in a water cooling heat absorption mode, so that the heat dissipation efficiency is improved.
The working principle is as follows: firstly, when the dust generated in the workshop machine production is less, the electromagnetic control valve 4 controls the air flow to singly enter the shunting inner cavity 24, the first through hole 25 is utilized to realize the contact of the air flow and the catalyst carrier 7, and the purpose of dust treatment is achieved.
When the dust in the workshop is large, the rotating shaft 21 is driven to rotate by the driving motor 20, the adjusting support 29 is driven to rotate by the rotating shaft 21, the second through hole 27 is communicated with the third through hole 28, the dust airflow in the shunting inner cavity 24 is discharged into the transverse flow channel 19, the contact area between the dust airflow and the catalyst carrier 7 is increased, and the purpose of increasing the treatment efficiency is achieved.
When the dust in a workshop is too large and the treatment device runs at full power, the electromagnetic control valve 4 controls airflow to flow into the catalyst carrier 7 in three strands along the diversion pipeline 6, the purpose of increasing the treatment reaction efficiency is realized through the transverse flow channel 19 and the longitudinal flow channel 18, a large amount of heat is generated in the treatment process, the heat absorption pipe 12 is utilized to take away the heat in the high-power running process in a water-cooling heat absorption mode, and the heat dissipation efficiency is improved.
The driving motor 20 is of the following type: a servo-controlled motor of PLX; the electromagnetic control valve 4 adopts the existing four-way valve electromagnetic reversing valve; the gas detector 17, the catalyst carrier 7 and the thermoelectric power supply 5 are all common technical devices in the prior art and are not described in detail.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a device is administered to workshop dust, is including administering the device main part, its characterized in that: the treatment device comprises an air inlet pipe (1), a dust treatment pipe (3) and an exhaust pipe (2), wherein the upper end of the dust treatment pipe (3) is communicated with the air inlet pipe (1), the lower end of the dust treatment pipe (3) is communicated with the exhaust pipe (2), an electromagnetic control valve (4) is arranged at the position, connected with the air inlet pipe (1), of the upper end of an inner cavity of the dust treatment pipe (3), a top plate (8) is fixedly welded on the inner wall of the upper end of the dust treatment pipe (3), the lower end of the electromagnetic control valve (4) is communicated with the top plate (8), the upper end of the electromagnetic control valve (4) is communicated with the air inlet pipe (1), a group of mutually symmetrical catalyst carriers (7) are arranged on the left side and the right side of the lower end of the top plate (8), a shunting main pipe (9) is installed in the middle of the top plate (8) in an inserting mode, and longitudinal runners (18) and transverse runners (19) which are vertically and horizontally staggered are arranged in the inner cavity of the catalyst carriers (7), be provided with heat dissipation inner chamber (10) between the outside of catalyst carrier (7) and the interlude inner wall of dust disposal pipe (3), the lower extreme of catalyst carrier (7) is provided with filter screen (15), filter screen (15) fixed mounting is in the lower extreme inner wall of reposition of redundant personnel person in charge (9), vertical runner (18) and transverse flow way (19) mutually perpendicular intercommunication, gas connector (30) of upper end intercommunication roof (8) upper end of vertical runner (18), the inner chamber of reposition of redundant personnel person in charge (9) is provided with reposition of redundant personnel inner chamber (24), and the interlude outer wall of reposition of redundant personnel person in charge (9) is provided with a plurality of first through-holes (25) of linear distribution, is provided with third through-hole (28) between the adjacent first through-hole (25) in interval, third through-hole (28) and transverse flow way (19) coincide one by one, three regulation support (29) of linear, the three adjusting supports (29) which are linearly distributed are fixedly arranged on the outer wall of the rotating shaft (21), the adjusting supports (29) are correspondingly arranged at the positions of the third through holes (28), the positions of the adjusting supports (29) corresponding to the third through holes (28) are provided with second through holes (27), the upper end of the rotating shaft (21) is rotatably connected with a driving motor (20), a heat dissipation plate (13) is arranged between the heat dissipation inner cavity (10) and the catalyst carrier (7), the heat absorption pipes (12) which are mutually communicated are arranged inside the heat dissipation inner cavity (10), and the outer walls of the upper side and the lower side of the heat dissipation inner cavity (10) are respectively provided with a water inlet (11) and a water outlet (14);
the upper ends of the left side and the right side of the shunting main pipe (9) and the top plate (8) are respectively provided with a gas interface (30), the electromagnetic control valve (4) is a four-way electromagnetic valve, and the lower end of the electromagnetic control valve (4) is respectively communicated with the gas interfaces (30) on the shunting main pipe (9) and the top plate (8) through three flow guide pipelines (6) which are linearly distributed.
2. The workshop dust treatment device of claim 1, which is characterized in that: the position that the upper end outer wall of dust handling pipe (3) is connected with intake pipe (1) is provided with thermoelectric source (5), and the lower extreme of dust handling pipe (3) and the outer wall of blast pipe (2) hookup location are provided with gas detector (17).
3. The workshop dust treatment device of claim 1, which is characterized in that: the upper end of the shunt main pipe (9) is connected with the top plate (8) in a sealing mode through a sealing washer (22), the lower end of the shunt main pipe (9) is provided with a sealing bottom plate (31), and the sealing bottom plate (31) is fixedly installed on the lower end face of the filter screen (15) through four screws (16) distributed in a circumferential array mode.
4. The workshop dust treatment device of claim 1, which is characterized in that: the upper end inner chamber of reposition of redundant personnel be responsible for (9) is provided with a pair of splitter box (23) of bilateral symmetry, the upper end intercommunication reposition of redundant personnel of splitter box (23) is responsible for gas connector (30) of (9), and the lower extreme intercommunication reposition of redundant personnel inner chamber (24) of splitter box (23).
5. The workshop dust treatment device of claim 1, which is characterized in that: the upper end inner wall of reposition of redundant personnel inner chamber (24) is provided with installation inner chamber (26), the upper end fixed mounting of driving motor (20) is in installation inner chamber (26) inner wall.
6. The workshop dust treatment device of claim 1, which is characterized in that: the heat dissipation plate (13) is tightly attached to the outer side of the catalyst carrier (7), an opening communicated with the transverse flow channel (19) is formed in the heat dissipation plate (13), and the transverse flow channel (19) is communicated with the heat dissipation inner cavity (10) through the opening.
7. The workshop dust treatment device of claim 1, which is characterized in that: the heat absorption pipe (12) is composed of pipelines which are communicated with each other and distributed in a circumferential array, liquid interfaces (32) are arranged at the head end and the tail end of the heat absorption pipe (12), and a pair of the liquid interfaces (32) which are distributed in an up-and-down symmetrical mode are respectively communicated with the water inlet (11) and the water outlet (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010347514.XA CN111359362B (en) | 2020-04-28 | 2020-04-28 | Workshop dust treatment device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010347514.XA CN111359362B (en) | 2020-04-28 | 2020-04-28 | Workshop dust treatment device |
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| CN111359362A CN111359362A (en) | 2020-07-03 |
| CN111359362B true CN111359362B (en) | 2021-07-23 |
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| CN112973365B (en) * | 2021-04-08 | 2024-04-09 | 邢台职业技术学院 | PM2.5 adsorption device and manufacturing method thereof |
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