CN114951157A - Device and method for removing accumulated dust in smoke exhaust pipeline of hot rolling mill - Google Patents
Device and method for removing accumulated dust in smoke exhaust pipeline of hot rolling mill Download PDFInfo
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- CN114951157A CN114951157A CN202210591229.1A CN202210591229A CN114951157A CN 114951157 A CN114951157 A CN 114951157A CN 202210591229 A CN202210591229 A CN 202210591229A CN 114951157 A CN114951157 A CN 114951157A
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- Prior art keywords
- sewage
- pipeline
- smoke exhaust
- pressure water
- hot rolling
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- 239000000779 smoke Substances 0.000 title claims abstract description 63
- 239000000428 dust Substances 0.000 title claims abstract description 56
- 238000005098 hot rolling Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000010865 sewage Substances 0.000 claims abstract description 93
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 55
- 230000001174 ascending effect Effects 0.000 claims description 21
- 238000007599 discharging Methods 0.000 claims description 17
- 238000001514 detection method Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 5
- 239000003546 flue gas Substances 0.000 abstract description 5
- 238000009423 ventilation Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000008859 change Effects 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Separation Of Particles Using Liquids (AREA)
Abstract
The invention discloses a device and a method for removing accumulated dust in a smoke exhaust pipeline of a hot rolling mill, wherein the device comprises a smoke exhaust pipeline, a high-pressure water nozzle, a smoke concentration detector, a sewage collecting pipe and a sewage discharge pipe; according to the invention, the high-pressure water nozzle is additionally arranged in the dust removal pipeline, so that the accumulated dust in the pipeline is removed in real time, and the accumulated dust is prevented from agglomerating on the inner wall of the pipeline; a smoke concentration detector is arranged at the inlet of the pipeline to realize the automatic opening control of the high-pressure water valve; a sewage collecting pipe is designed to realize separation of dust-removing sewage and flue gas; the sewage is smoothly discharged through the necking design of the sewage pipeline; the sewage level sensor controls the sewage discharge electromagnetic valve to be automatically opened and closed, so that smoke dust adhered to the dust removal pipeline can be timely and automatically removed, and the ventilation effect of the dust removal pipeline is ensured not to change along with time; effectively reduce dust removal flue clearance intensity, improve pipeline maintenance cycle by a wide margin, improve production efficiency.
Description
Technical Field
The invention relates to the technical field of metallurgical equipment, in particular to a device and a method for removing accumulated dust in a smoke exhaust pipeline of a hot rolling mill.
Background
In the hot rolling process, iron scale on the surface of the steel billet is broken in the rolling process, a working roll and the steel billet are rubbed to generate a large amount of iron oxide smoke, and in addition, the mixture of the rolling mill lubricating oil and the cooling water generates smoke under the action of high temperature of hot rolling. The mixed smoke dust not only pollutes the environment, but also damages the health of workers, and the dust removing device can effectively reduce the dust amount of a workshop by timely discharging hot-rolled iron scales and greasy dirt smoke dust out of a hot-rolling workshop. Typically, the fumes are transported from the plant to an outdoor fume treatment facility through a dust removal duct. In the transmission process, a large amount of water vapor and oil stains in the smoke and dust cause dust particles to be easily adhered to the inner wall of the dust removal pipeline, so that accumulated dust in the pipeline is accumulated continuously, the ventilation volume of the pipeline is gradually reduced, the dust removal capacity of equipment is reduced, the field environment is gradually worsened, and the pipeline load is gradually increased, so that the safety is reduced.
In addition, because the smoke and dust temperature is high, humidity is big, and the adhesion takes place to agglomerate at the smoke and dust of dust removal pipeline, and the maintenance in-process is difficult to wash with water, only can rely on the manual work to dismantle the pipeline, and manual clearance resets again and connects, and whole cleaning process is complicated, and the clearance work load is big, and is consuming time long.
Therefore, how to conveniently and quickly remove the dust in the flue, the normal ventilation of the flue is always kept, and the on-site working environment is ensured to be always clean becomes an important practical problem to be solved urgently.
Disclosure of Invention
The invention aims to provide a device and a method for removing accumulated dust in a hot rolling mill smoke exhaust pipeline, which are used for solving the problems in the prior art, can timely and automatically remove the dust adhered to a dust removal pipeline and ensure that the ventilation effect of the dust removal pipeline is not changed along with time; effectively reduce dust removal flue clearance intensity, improve pipeline maintenance cycle by a wide margin, improve production efficiency.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a device for removing accumulated dust in a hot rolling mill smoke exhaust pipeline, which comprises a smoke exhaust pipeline, a high-pressure water nozzle, a smoke concentration detector, a sewage collecting pipe and a sewage discharging pipe, wherein the smoke exhaust pipeline is provided with a smoke exhaust pipe; the high-pressure water nozzle is arranged in the smoke exhaust pipeline, the smoke concentration detector is arranged at an inlet of the smoke exhaust pipeline and used for detecting smoke concentration and further controlling the opening frequency of the high-pressure water nozzle, the sewage collecting pipe is arranged on the drainage pipeline and used for collecting sewage formed after the pipeline is cleaned, and the sewage discharging pipe is connected with the sewage collecting pipe and used for discharging the sewage.
Preferably, the smoke exhaust pipeline sequentially comprises an inclined ascending section, a vertical ascending section, a horizontal section, a vertical descending section and an inclined descending section from the head end to the tail end; the height of the horizontal section is gradually reduced from the head end to the tail end.
Preferably, the diameter of the smoke exhaust pipeline is 300-700 mm; the length of the inclined ascending section is 4000-7000mm, and the included angle between the inclined ascending section and the horizontal line is 20-50 degrees; the height of the vertical ascending section is 8000-; the length of the horizontal section is 50000-100000mm, and the included angle between the horizontal section and the horizontal line is 1-10 degrees; the length of the vertical descending section is 8000-; the length of the inclined descending segment is 4000-7000mm, and the included angle between the inclined descending segment and the horizontal line is 20-50 degrees.
Preferably, 4-20 high-pressure water nozzles are equidistantly mounted on the top of the inner wall of the horizontal section, and the included angle between each high-pressure water nozzle and the horizontal section is 30-60 degrees.
Preferably, the sewage collecting pipe is respectively arranged at the bottoms of the inclined ascending section and the inclined descending section, the bottom of the sewage collecting pipe is connected with the sewage discharging pipe, and an electromagnetic valve for controlling the on-off of a pipeline is arranged in the sewage discharging pipe.
Preferably, a sewage highest water level sensor and a sewage lowest water level sensor are further arranged in the sewage collecting pipe.
Preferably, the diameter of the sewage collecting pipe is 300-700mm, and the length is 500-1000 mm; the diameter of the sewage discharge pipe is 50-100mm, and the length is 2000-10000 mm; the distance between the sewage highest water level sensor and the sewage lowest water level sensor is 200-10000 mm and the distance between the sewage lowest water level sensor and the electromagnetic valve is 2000-10000 mm.
Based on the device for removing the accumulated dust in the hot rolling mill exhaust pipe, the invention also provides a method for removing the accumulated dust in the hot rolling mill exhaust pipe, wherein a detection signal of a smoke concentration detector at an inlet of the exhaust pipe is transmitted to a central controller, the central controller sends an instruction to a control valve of the high-pressure water nozzle according to a set rule, and the control valve of the high-pressure water nozzle executes according to a given opening frequency, so that the high-pressure water nozzle cleans the pipeline by spraying water; when the highest sewage level sensor in the sewage collecting pipeline detects that the water level reaches the upper limit, a signal is transmitted to the central controller, the central controller sends an instruction to the electromagnetic valve according to a set rule, the electromagnetic valve is opened, and when the sewage discharge water level reaches the lowest sewage level sensor, the same control program is adopted, and the electromagnetic valve is closed to stop water discharge.
Compared with the prior art, the invention has the following beneficial technical effects:
according to the device and the method for clearing accumulated dust in the smoke exhaust pipeline of the hot rolling mill, the high-pressure water nozzle is additionally arranged in the dust removal pipeline, so that accumulated dust in the pipeline is cleared in real time, and the accumulated dust is prevented from being agglomerated on the inner wall of the pipeline; a smoke concentration detector is arranged at the inlet of the pipeline to realize the automatic opening control of the high-pressure water valve; a sewage collecting pipe is designed to realize separation of dust-removing sewage and flue gas; the sewage is smoothly discharged through the necking design of the sewage pipeline; the sewage water level sensor controls the blowdown electromagnetic valve to be automatically opened and closed, so that smoke dust adhered to the dedusting pipeline can be timely and automatically removed, and the ventilation effect of the dedusting pipeline is ensured not to change along with time; effectively reduce dust removal flue clearance intensity, improve pipeline maintenance cycle by a wide margin, improve production efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural view of a device for removing accumulated dust in a smoke exhaust duct of a hot rolling mill according to the present invention;
FIG. 2 is a control schematic diagram of the device for removing accumulated dust in the smoke exhaust duct of the hot rolling mill according to the present invention;
in the figure: 1-inclined ascending section, 2-vertical ascending section, 3-horizontal section, 4-vertical descending section, 5-inclined descending section, 6-smoke concentration detector, 7-high pressure water nozzle, 8-sewage collecting pipe, 9-sewage highest water level sensor, 10-sewage lowest water level sensor, 11-sewage discharging pipe and 12-electromagnetic valve.
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.
The invention aims to provide a device and a method for removing accumulated dust in a smoke exhaust pipeline of a hot rolling mill, which aim to solve the problems in the prior art.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The device for removing the accumulated dust in the smoke exhaust pipeline of the hot rolling mill in the embodiment comprises a smoke exhaust pipeline, a high-pressure water nozzle 7, a smoke concentration detector 6, a sewage collecting pipe 8 and a sewage discharging pipe 11, as shown in figure 1; high pressure water nozzle 7 sets up in the exhaust pipe, and smoke and dust concentration detector 6 sets up in the entrance of exhaust pipe for detect the flue gas concentration and then control high pressure water nozzle 7's opening frequency, sewage collecting pipe 8 sets up and is used for collecting the sewage that forms after the washing pipeline on drainage pipe, and sewage discharging pipe 11 connects sewage collecting pipe 8 and is used for discharging sewage.
In the embodiment, the smoke exhaust pipeline is sequentially provided with an inclined ascending section 1, a vertical ascending section 2, a horizontal section 3, a vertical descending section 4 and an inclined descending section 5 from the head end to the tail end; the height of the horizontal section 3 gradually decreases from the head end to the tail end. Wherein the diameter of the smoke exhaust pipeline is 500 mm; the length of the inclined ascending section 1 is 5000mm, and an included angle between the inclined ascending section 1 and the horizontal line is 40 degrees; the height of the vertical ascending section 2 is 10000 mm; the length of the horizontal section 3 is 60000mm, and the included angle between the horizontal section and the horizontal line is 5 degrees; the length of the vertical descending section 4 is 8000 mm; the length of the inclined descending section 5 is 5000mm, and the included angle between the inclined descending section and the horizontal line is 40 degrees.
In this embodiment, 5 high pressure water nozzles 7 are equidistantly installed on the top of the inner wall of the horizontal section 3, and the included angle between the high pressure water nozzles 7 and the horizontal section 3 is 45 °.
In this embodiment, the sewage collecting pipe 8 is respectively disposed at the bottom of the inclined ascending section 1 and the inclined descending section 5, the bottom of the sewage collecting pipe 8 is connected to a sewage discharging pipe 11, and an electromagnetic valve 12 for controlling the on-off of the pipeline is disposed in the sewage discharging pipe 11. The diameter of the sewage collecting pipe 8 is 500mm, and the length is 800 mm; the diameter of the sewage discharge pipe 11 is 100mm, the length is 5000mm, and the diameter of the sewage discharge pipe 11 is smaller than the diameter of the sewage collecting pipe 8, so that the sewage discharge pressure is higher than the negative pressure of the pipeline, and the sewage discharge flow is smooth. A highest sewage level sensor 9 and a lowest sewage level sensor 10 are also arranged in the sewage collecting pipe 8. The distance between the sewage highest level sensor 9 and the sewage lowest level sensor 10 is 300mm, and the distance between the sewage lowest level sensor 10 and the electromagnetic valve 12 is 5000 mm.
In this embodiment, the sewage and the flue gas in the pipeline are separated at the joint of the bent pipes below the vertical ascending section 2 and the vertical descending section 4 of the dust removal pipeline, the sewage is discharged in the direction of the dotted arrow in fig. 1, and the flue gas is discharged in the direction of the solid arrow in fig. 1.
Based on the device for removing the accumulated dust in the smoke exhaust pipeline of the hot rolling mill, the embodiment also provides a method for removing the accumulated dust in the smoke exhaust pipeline of the hot rolling mill, and with reference to the attached drawing 2, a detection signal of a smoke concentration detector 6 at an inlet of the smoke exhaust pipeline is transmitted to a central controller, the central controller sends an instruction to a control valve of a high-pressure water nozzle 7 according to a set rule, and the control valve of the high-pressure water nozzle 7 is executed according to a downward opening frequency (such as a dotted line arrow line in the figure 2), so that the high-pressure water nozzle 7 sprays water to clean the pipeline; when the highest sewage level sensor 9 in the sewage collecting pipe 8 detects that the water level reaches the upper limit, a signal is transmitted to the central controller, the central controller sends an instruction to the electromagnetic valve 12 according to a set rule, the electromagnetic valve 12 is opened, and when the sewage discharge water level reaches the lowest sewage level sensor 10, the same control program is adopted, and the electromagnetic valve 12 is closed to stop water discharge (shown as a solid arrow line in fig. 2).
The principle and the implementation mode of the invention are explained by applying specific examples, and the description of the above examples is only used for helping understanding the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, this summary should not be construed as limiting the invention.
Claims (8)
1. The utility model provides an pile up dust clearing device in hot rolling mill exhaust pipe which characterized in that: comprises a smoke exhaust pipeline, a high-pressure water nozzle, a smoke concentration detector, a sewage collecting pipe and a sewage discharging pipe; the high-pressure water nozzle is arranged in the smoke exhaust pipeline, the smoke concentration detector is arranged at an inlet of the smoke exhaust pipeline and used for detecting smoke concentration and further controlling the opening frequency of the high-pressure water nozzle, the sewage collecting pipe is arranged on the drainage pipeline and used for collecting sewage formed after the pipeline is cleaned, and the sewage discharging pipe is connected with the sewage collecting pipe and used for discharging the sewage.
2. The hot rolling mill smoke exhaust duct in-built dust removal apparatus of claim 1, wherein: the smoke exhaust pipeline is sequentially provided with an inclined ascending section, a vertical ascending section, a horizontal section, a vertical descending section and an inclined descending section from the head end to the tail end; the height of the horizontal section from the head end to the tail end is gradually reduced.
3. The hot mill smoke exhaust duct built-up dust removal device of claim 2, wherein: the diameter of the smoke exhaust pipeline is 300-700 mm; the length of the inclined ascending section is 4000-7000mm, and the included angle between the inclined ascending section and the horizontal line is 20-50 degrees; the height of the vertical ascending section is 8000-; the length of the horizontal segment is 50000-100000mm, and the included angle between the horizontal segment and the horizontal line is 1-10 degrees; the length of the vertical descending section is 8000-; the length of the inclined descending segment is 4000-7000mm, and the included angle between the inclined descending segment and the horizontal line is 20-50 degrees.
4. The hot rolling mill smoke exhaust duct in-built dust removal apparatus of claim 3, wherein: 4-20 high-pressure water nozzles are equidistantly arranged on the top of the inner wall of the horizontal section, and the included angle between each high-pressure water nozzle and the horizontal section is 30-60 degrees.
5. The hot rolling mill smoke exhaust duct in-built dust removal apparatus of claim 2, wherein: the sewage collecting pipe is arranged at the bottom of the inclined ascending section and the bottom of the inclined descending section respectively, the bottom of the sewage collecting pipe is connected with the sewage discharging pipe, and an electromagnetic valve for controlling the on-off of a pipeline is arranged in the sewage discharging pipe.
6. The hot rolling mill smoke exhaust duct in-built dust removal apparatus of claim 5, wherein: and a highest sewage level sensor and a lowest sewage level sensor are also arranged in the sewage collecting pipe.
7. The hot rolling mill smoke exhaust duct in-built dust removal apparatus of claim 6, wherein: the diameter of the sewage collecting pipe is 300-700mm, and the length of the sewage collecting pipe is 500-1000 mm; the diameter of the sewage discharge pipe is 50-100mm, and the length is 2000-10000 mm; the distance between the sewage highest water level sensor and the sewage lowest water level sensor is 200-10000 mm, and the distance between the sewage lowest water level sensor and the electromagnetic valve is 2000-10000 mm.
8. A method for removing accumulated dust in a smoke exhaust pipeline of a hot rolling mill, which applies the device for removing the accumulated dust in the smoke exhaust pipeline of the hot rolling mill according to any one of claims 1 to 7, and is characterized in that: a detection signal of the smoke concentration detector at the inlet of the smoke exhaust pipeline is transmitted to the central controller, the central controller sends an instruction to the control valve of the high-pressure water nozzle according to a set rule, and the control valve of the high-pressure water nozzle executes according to the assigned opening frequency, so that the high-pressure water nozzle sprays water to clean the pipeline; when the highest sewage level sensor in the sewage collecting pipeline detects that the water level reaches the upper limit, a signal is transmitted to the central controller, the central controller sends an instruction to the electromagnetic valve according to a set rule, the electromagnetic valve is opened, and when the sewage discharge water level reaches the lowest sewage level sensor, the same control program is adopted, and the electromagnetic valve is closed to stop water discharge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210591229.1A CN114951157A (en) | 2022-05-27 | 2022-05-27 | Device and method for removing accumulated dust in smoke exhaust pipeline of hot rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210591229.1A CN114951157A (en) | 2022-05-27 | 2022-05-27 | Device and method for removing accumulated dust in smoke exhaust pipeline of hot rolling mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114951157A true CN114951157A (en) | 2022-08-30 |
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ID=82958031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210591229.1A Pending CN114951157A (en) | 2022-05-27 | 2022-05-27 | Device and method for removing accumulated dust in smoke exhaust pipeline of hot rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114951157A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100805853B1 (en) * | 2006-12-18 | 2008-02-27 | 신우씨앤엠솔루션(주) | Apparatus for cleaning pipe |
| CN208453635U (en) * | 2018-07-09 | 2019-02-01 | 江苏仁爱建材科技开发有限公司 | Measuring tank with automatic cleaning function |
| CN208975413U (en) * | 2018-09-21 | 2019-06-14 | 杭州宁骏科技有限公司 | A kind of flue with depositing dust function |
| CN212119432U (en) * | 2020-01-09 | 2020-12-11 | 泉州市力亿消防科技有限公司 | Industrial ventilation pipeline dust collection device |
-
2022
- 2022-05-27 CN CN202210591229.1A patent/CN114951157A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100805853B1 (en) * | 2006-12-18 | 2008-02-27 | 신우씨앤엠솔루션(주) | Apparatus for cleaning pipe |
| CN208453635U (en) * | 2018-07-09 | 2019-02-01 | 江苏仁爱建材科技开发有限公司 | Measuring tank with automatic cleaning function |
| CN208975413U (en) * | 2018-09-21 | 2019-06-14 | 杭州宁骏科技有限公司 | A kind of flue with depositing dust function |
| CN212119432U (en) * | 2020-01-09 | 2020-12-11 | 泉州市力亿消防科技有限公司 | Industrial ventilation pipeline dust collection device |
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Application publication date: 20220830 |